Air pollution in China has been drawing considerable attention in recent years. The emergence of new energy vehicles provides hope to reduce air pollutant emission. However, consumers' recognition and acceptance of NEVs remain at the early stage. This research aims to explore how consumers' environmental concern influences their NEV purchase intention. Specifically, this research conducted an online survey and an experiment to address the following issues: how consumers' psychological distance toward air pollution influences their purchase intention for NEVs, and does (...) their risk perception of the consequences of air pollution mediate this influence; whether consumers' perceived price level of NEVs plays a moderating role in the relationship between risk perception and purchase intention; and whether the construal level of stimulus can be manipulated to influence consumers' PD toward air pollution to increase their purchase intention for NEVs. The results of study 1, based on a total of 293 valid samples, show that consumers' PD toward air pollution significantly affects their purchase intention for NEVs, and risk perception of the consequences of air pollution plays a considerable mediating role. Meanwhile, consumers' perceived price level of NEVs has a significant negative moderating effect on the relationship between risk perception and purchase intention. The results of study 2, based on an online experiment, show that the construal level of stimulus can influence consumers' PD toward air pollution, which in turn affects their purchase intention for NEVs. The findings of this research have implications for businesses' promotional strategies and governments' policies. For instance, low-construal-level promotional materials can be developed to arouse consumers' environmental concern, thereby facilitating their eco-friendly consumption behavior. Governmental financial assistance and other policies can also increase consumers' willingness to purchase NEVs. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Three Probes into St. Francis of Assisi's Second Letter to the Faithful1Robert J. Karris, OFMFrancis' Second Letter to the Faithful2 is so rich that it would take a lengthy book to probe most of its treasures. My goal is to make three probes: 1) from a literary analysis of this letter of exhortation, 2) from the results of a more thorough search for the biblical sources behind its (...) eighty-eight lines, and 3) from the insights achieved through literary and theological parallels to its contents.3 I accomplish my goals by going systematically through this letter, which I contend has introduction, positive exhortations, conclusion to positive exhortations and bridge to second part of the letter, negative exhortations, aka polemic, the example story of the unrepentant rich man, and ending.4 At the very beginning, I remind myself and my readers of something that we might take for granted: The dominant figure of this letter is "our Lord Jesus Christ," an expression and reality that pulses through its eighty-eight lines. Take, as [End Page 79] an example, n. 49–50, which are staggering in scope: "And they (who persevere in penance) will be children of the heavenly Father, whose works they are doing. And they are spouses, brothers, and mothers of our Lord Jesus Christ."Methodology: Search for Literary and Theological ParallelsEarly on in my doctoral studies, I learned the importance and value of investigating New Testament texts by means of their literary parallels.5 For example, there were significant interpretive payoffs to be gained by comparing St. Paul's use of polemic in the Pastoral Epistles (1–2 Timothy and Titus) to that employed by the Stoics.6 Paul probably never met a Stoic philosopher in his life, but their means of no-holds-barred polemic was "in the air" he breathed. Daniel J. Harrington expresses well this common methodology in New Testament Studies: "In literature a parallel involves some point or points of similarity between two texts where literary dependence is unlikely or not proved. Parallels to New Testament texts can be taken from any body of literature and from any period of history…"7So what parallels do I suggest as background for the interpretation of Francis' 2LtF? There may be many, since Francis' letter is dealing with fundamental human and Christian realities: sin and virtue. I have selected what I call The Big Three:In his De Virtutibus et Vitiis Liber,8 Alcuin of York (d. 800) wrote a letter to Count Guy, who is engaged in martial activities. Alcuin has followed Guy's request for paternal admonition and prays that his writing may help Guy to perpetual salvation (n. 6). Alcuin writes briefly about 35 topics: wisdom, faith, charity, hope, zeal of reading, peace, mercy, remission, patience, humility, compunction of the heart, confession, repentance, not delaying conversion to God, fear of God, fasting, almsgiving, chastity, avoiding fraud, judges, false witnesses, envy, pride, proneness to anger, not seeking human praise, perseverance in good works, eight principal vices, greed, fornication, avarice, anger, [End Page 80] weariness (acedia), sorrow, cenodoxia (vainglory), and the four virtues.9 It is abundantly clear that Francis does not engage in 35 topics, but his exhortations do overlap with a number of Alcuin's, e.g., almsgiving, judges, perseverance in good works.In his Liber exhortationis,10 Archbishop St. Paulinus of Aquileia (d. 802) wrote to Count or Duke Henry of Fruilli. His treatise has 66 chapters and covers virtually all spiritual and moral topics. Of singular interest is Chapter 8, "On Friendship with God and Keeping God's Commandments." His final chapter is a long prayer to resist the wiles of the devil and to persevere in virtue. Saints Paulinus of Aquileia and Francis of Assisi's 2LtF have numerous points in common.11Archbishop Hincmar of Reims (d. 882) wrote a very polished and regarded letter, De cavendis vitiis et virtutibus exercendis to King Charles the Bald.12 It has ten chapters. The first seven deal chiefly with vices such as avarice, pride, voluptuousness, gluttony, envy, anger, and jealousy. They also encourage virtuous deeds such as almsgiving, works of mercy, fidelity, and prayer. Chapters 8... (shrink)

The adaptation-by-binding account and the arousal-biased competition model suggest that emotional arousal increases binding effects for transient links between stimuli and responses. Two highly-powered, pre-registered experiments tested whether transient stimulus-response bindings are stronger for high versus low arousing stimuli. Emotional words were presented in a sequential prime-probe design in which stimulus relation, response relation, and stimulus arousal were orthogonally manipulated. In Experiment 1 (N = 101), words with high and low arousal levels were presented individually in (...) prime and probe displays. In Experiment 2 (N = 170), a high arousing affective word was presented simultaneously with a neutral word during the prime display; in the subsequent probe display, either the arousing or the neutral word repeated or a different high versus low arousal word was shown. Data from both experiments did not demonstrate a modulation of SRBR effects by stimulus arousal and SRBR effects were of equal magnitude for word stimuli of high and low arousal levels. These null results are not in line with binding accounts that hypothesise a modulatory influence of emotional arousal on perception-action binding. (shrink)

ABSTRACTIn verbal communication, affective information is commonly conveyed to others through spatial terms. This study used a target location discrimination task with neutral, positive and negative stimuli to test the automaticity of the emotion-space association, both in the vertical and horizontal spatial axes. The effects of stimulus type on emotion-space representations were also probed. A congruency effect was observed in the vertical axis: detection of upper targets preceded by positive stimuli was faster. This effect occurred for all stimulus (...) types, indicating that the emotion-space association is not dependent on sensory modality and on the verbal content of affective stimuli. (shrink)

This book provides an interdisciplinary approach to one of the most fascinating and important open questions in science: What is quantum mechanics really talking about? In the last decades quantum mechanics has given rise to a new quantum technological era, a revolution taking place today especially within the field of quantum information processing; which goes from quantum teleportation and cryptography to quantum computation. Quantum theory is probably our best confirmed physical theory. However, in spite of its great empirical effectiveness it (...) stands today still without a universally accepted physical representation that allows us to understand its relation to the world and reality. The novelty of the book comes from the multiple perspectives put forward by top researchers in quantum mechanics, from Europe as well as North and South America, discussing the meaning and structure of the theory of quanta. The book comprises in a balanced manner physical, philosophical, logical and mathematical approaches to quantum mechanics and quantum information. Going from quantum superpositions and entanglement to dynamics and the problem of identity; from quantum logic, computation and quasi-set theory to the category approach and teleportation; from realism and empiricism to operationalism and instrumentalism; the book considers from different angles some of the most intriguing questions in the field. From Buenos Aires to Brussels and Cagliari, from Florence to Florianópolis, the interaction between different groups is reflected in the many different articles. This book is interesting not only to the specialists but also to the general public attempting to get a grasp on some of the most fundamental questions of present quantum physics. (shrink)

Previous researchers have found that head-down bed rest will affect the emotional state of individuals, and negative emotions such as anxiety are closely related to attention bias. The present study adopted the dot-probe task to evaluate the effects of 15-days of −6° HDBR on the attention bias of threatening stimulus in 17 young men, which was completed before, during, after the bed rest. In addition, self-report inventories were conducted to record emotional changes. The results showed that the participants’ (...) negative affect scores on HDBR-8 were significantly lower than the HDBR-1 in PANAS while there was no significant difference on positive affect scores and anxiety scores in SAI. And the results showed that at the Pre-HDBR, HDBT-1, HDBR-15, Post-HDBR, the response speed to threatening stimulus was faster than neutral stimulus, but no statistical significance. However, reaction time of threatening stimulus is significantly longer than neutral stimulus in the HDBR-8, indicating that HDBR may have an effect on the participants’ attention bias, and this effect is manifested as attention avoidance. (shrink)

ABSTRACTNew methods of calculating indices from the dot-probe task measure temporal dynamics in attention bias or fluctuations in attention bias towards and away from emotional stimuli over time. H...

Multimodal integration is the formation of a coherent percept from different sensory inputs such as vision, audition, and somatosensation. Most research on multimodal integration in speech perception has focused on audio-visual integration. In recent years, audio-tactile integration has also been investigated, and it has been established that puffs of air applied to the skin and timed with listening tasks shift the perception of voicing by naive listeners. The current study has replicated and extended these findings by testing the effect of (...) air puffs on gradations of voice onset time along a continuum rather than the voiced and voiceless endpoints of the original work. Three continua were tested: bilabial (“pa/ba”), velar (“ka/ga”), and a vowel continuum (“head/hid”) used as a control. The presence of air puffs was found to significantly increase the likelihood of choosing voiceless responses for the two VOT continua but had no effect on choices for the vowel continuum. Analysis of response times revealed that the presence of air puffs lengthened responses for intermediate (ambiguous) stimuli and shortened them for endpoint (non-ambiguous) stimuli. The slowest response times were observed for the intermediate steps for all three continua, but for the bilabial continuum this effect interacted with the presence of air puffs: responses were slower in the presence of air puffs, and faster in their absence. This suggests that during integration auditory and aero-tactile inputs are weighted differently by the perceptual system, with the latter exerting greater influence in those cases where the auditory cues for voicing are ambiguous. (shrink)

In previous studies, we found that bodily symptoms can be learned in a differential conditioning paradigm, using odors as conditioned stimuli and CO2-enriched air as unconditioned stimulus . However, this only occurred when the odor CS had a negative valence , and tended to be more pronounced in persons scoring high for Negative Affectivity . This paper considers the necessity and/or sufficiency of awareness of the CS–US contingency in three studies using this paradigm. The relation between contingency awareness and (...) the selective conditioning effect, and between contingency awareness and NA was also considered. Both self reported symptoms and respiratory physiology served as dependent variables. A learning effect on symptoms was found only for participants aware of the CS–US contingency, but not all participants reporting contingency awareness showed a learning effect. No conditioning effects appeared on the physiological measures. Also contingency awareness did not account for the selective conditioning effect, and did not interact with NA. Overall, the necessity but insufficiency hypotheses can only be withhold for group data and not for individual data. (shrink)

Previous research has demonstrated that duration of implied motion (IM) was dilated, whereas hMT+ activity related to perceptual processes on IM stimuli could be modulated by their motion coherence. Based on these findings, the present study aimed to examine whether subjective time perception of IM stimuli would be influenced by varying coherence levels. A temporal bisection task was used to measure the subjective experience of time, in which photographic stimuli showing a human moving in four directions (left, right, toward, or (...) away from the viewer) were presented as probe stimuli. The varying coherence of these IM stimuli was manipulated by changing the percentage of pictures implying movement in one direction. Participants were required to judge whether the duration of probe stimulus was more similar to the long or short pre-presented standard duration. As predicted, the point of subjective equality was significantly modulated by the varying coherence of the IM stimuli, but not for no-IM stimuli. This finding suggests that coherence level might be a key mediating factor for perceived duration of IM images, and top-down perceptual stream from inferred motion could influence subjective experience of time perception. (shrink)

When visual attention is directed away from a stimulus, neural processing is weak and strength and precision of sensory data decreases. From a computational perspective, in such situations observers should give more weight to prior expectations in order to behave optimally during a discrimination task. Here we test a signal detection theoretic model that counter-intuitively predicts subjects will do just the opposite in a discrimination task with two stimuli, one attended and one unattended: when subjects are probed to discriminate (...) the unattended stimulus, they rely less on prior information about the probed stimulus’ identity. The model is in part inspired by recent findings that attention reduces trial-by-trial variability of the neuronal population response and that they use a common criterion for attended and unattended trials. In five different visual discrimination experiments, when attention was directed away from the target stimulus, subjects did not adjust their response bias in reaction to a change in stimulus presentation frequency despite being fully informed and despite the presence of performance feedback and monetary and social incentives. This indicates that subjects did not rely more on the priors under conditions of inattention as would be predicted by a Bayes-optimal observer model. These results inform and constrain future models of Bayesian inference in the human brain. (shrink)

To probe the motivational roles of hedonic gratification and social gratification in giving “Like” feedback on social media, we developed a set of novel pictures to simulate WeChat Moments. We subsequently examined how the personality trait of extraversion and stimulus content characteristics influenced “Liking” behavior. A 2 × 3 × 2 -mixed experimental design was applied to data obtained from 56 WeChat Moments users. These participants included 28 individuals with the highest extraversion scale scores, and 28 individuals with (...) the lowest extraversion scale scores, according to the NEO Five-Factor Inventory. Briefly, participants observed pictures on an interface similar to that of WeChat Moments and were given the option to “Like” each picture. “Like” rates and response time were then compared across groups and conditions by applying a mixed-design analysis of variance. Pearson's correlation coefficients were calculated to explore relationships between the “Like” rates under each condition and the scores for each personality trait. Compared with the neutral pictures, the positive and negative pictures were “Liked” more and less frequently, respectively. Compared with the poster-unrelated pictures, the personally related pictures were “Liked” more frequently. In the extrovert group, the frequency of “Likes” given to unrelated negative content positively associated with neuroticism and negatively associated with conscientiousness. No correlations were observed in the introvert group. Compared with not giving “Like” feedback, participants gave “Likes” to positive and negative pictures more quickly and slowly, respectively.These results support the hypothesis that hedonic gratification and social gratification motivate “Like” feedback for positive content and personally related content, respectively. “Liking” behavior was not affected by extraversion, but was related to neuroticism and conscientiousness. Content-related differences in time intervals for giving “Like” feedback in this study suggest that people do not hesitate to give “Like” feedback to positive content on WeChat Moments, yet linger in deciding to give “Like” feedback to negative content. (shrink)

This article probes the evolutionary origins ofmoral capacities and moral agency. From thisit develops a theory of the guidancesystem of higher mind (GSHM). The GSHM is ageneral model of intelligence whereby moralfunctioning is integrated with cognitive,affective, and conative functioning, resultingin a flow of information between eight brainlevels functioning as an evaluative unitbetween stimulus and response.The foundation of this view of morality and ofcaring behavior is Charles Darwin's theory,largely ignored until recently, of thegrounding of morality in sexual instincts whichlater expand (...) into parental love. Also, PaulMacLean made these same connections in hisdevelopment of the triune brain theory, whichwas founded on observations of both sexual andaffectionate responses from stimulation oflimbic and paleocortical areas (that is, notthe most primitive areas) of monkey brains. This article relates the revolutionary areas ofDarwin and of MacLean together for the firsttime in an way intended to be accessible to arange of social and natural scientists. TheGSHM builds on and expands both of their workto develop a theory of the processing withinour brains of information screened by asequence of systems, social, future, moral,developmental, and managerial ``sensitivities.''Darwin's and MacLean's observations and theGSHM theory developed here argue against theold strict distinction between ``lower''emotional processes and ``higher'' rationalprocesses. In fact, MacLean, Karl Pribram, andothers have found that emotional responses areclosely tied to reason through the functions ofthe prefrontal cortex. Prefrontal function isclosely related to the development of moralsensibility and judgment. In particular, it isthe connections between prefrontal cortex andother brain areas that allow us to makedeliberate choices to be or not to be caring. These same connections allow us to learnculturally sensitive signals for when torelease or inhibit our cooperative oraggressive tendencies (both of which can beelicited by sexual displays in monkeys as wellas humans). These are closely tied to thesocial instinct in animals, and to thesocialization that children receive from theirparents (whom the clinical psychologist AlanSchore has described as providing a ``substituteprefrontal cortex'' for their very youngchildren). Higher levels of the GSHM modelsuch capabilities as thinking beyond thecurrent social situation to ``what could be'' anddialectical synthesis of apparent opposites,which are what allow humans the freedom todesign social realities to fit our moralsensibilities. (shrink)

The experiments reported herein probe the visual cortical mechanisms that control near–far percepts in response to two-dimensional stimuli. Figural contrast is found to be a principal factor for the emergence of percepts of near versus far in pictorial stimuli, especially when stimulus duration is brief. Pictorial factors such as interposition (Experiment 1) and partial occlusion Experiments 2 and 3) may cooperate, as generally predicted by cue combination models, or compete with contrast factors in the manner predicted by the (...) FACADE model. In particular, if the geometrical conŽ guration of an image favors activation of cortical bipole grouping cells, as at the top of a T-junction, then this advantage can cooperate with the contrast of the conŽ guration to facilitate a near–far percept at a lower contrast than at an X-junction. Varying the exposure duration of the stimuli shows that the more balanced bipole competition in the X-junction case takes longer exposure times to resolve than the bipole competition in the T-junction case (Experiment 3). (shrink)

This chapter probes Augustine’s occasional attitude of indifference to paradox and his capacity to resolve mystery by responding to Gareth B. Matthews’s “The Socratic Augustine” and Peter King’s “Augustine on the Impossibility of Teaching.” Matthews suggests that, despite his dogmatic tendencies, Augustine is content to accept some cases of Socratic perplexity as genuine because the phenomena they describe are real. This chapter argues for the alternative view that Augustine is content not to pronounce on some seemingly paradoxical phenomena because they (...) are not relevant to religious dogma. King defends the Augustinian thesis that teaching, construed as causal transmission of knowledge, is extremely mysterious if not impossible. The chapter suggests that much of the air of mystery evaporates once we distinguish between metaphysical dependency and epistemological dependency. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Ethics & the Environment 8.1 (2003) 112-125 [Access article in PDF] You Make My Heart Sing David Rothenberg Last March I went to Pittsburgh to play music live with birds. The plan was to arrive at dawn, to catch the wary singers at their best—in the early morning chorus, when the most sound was happening. I met my friend Michael Pestel at the gates of the National Aviary, a (...) mostly forgotten federal institution in a rundown neighborhood. I had never heard of the aviary before Pestel told me what a great place it was to jam with the more-than-human world. The staff was rumored to be friendly, and they liked to let musicians in during the early hours before the public, mostly guided schoolchildren, would storm the gates.Pestel was there with his flute and various homemade stringed instruments. I had clarinets and saxophones, coaxed out of their cases, a bit tired from the long ride, but ready to hear what these birds had up their sleeves. We headed for the marsh room, a vaulted expanse with an observation deck and waterbirds from all over the world. I strained my ears to catch some pretty rocking bird beats, but they sounded familiar. Too familiar—the aviary was blaring Marvin Gaye at top volume to these birds at six o'clock in the morning. They were definitely squawkin' and squealin'."I cannot work in these conditions," muttered Pestel. "We've got to get these people to turn that racket down.""Didn't you warn them we were coming?""No," he shook his head. "You can't do that. Art always arrives without warning." [End Page 112]"You sure they'll let us do this?""No problem, man, I've come here many times before. These people know me. These birds know me."Marvin was turned down. The sprinklers were turned down (rain must start in the rainforest room every day before sunrise). How else to keep the gaudy barbets happy? Does a blue-crowned motmot (Momotus momota) or a violaceous euphonia (Euphonia violacea) really want to hear strange instrumental shrieks before breakfast? Weren't they content with "What's Going On?"Athanasius Kircher 1 knew the birds were onto something even in 1650:And then Wittgenstein had the nerve to warn us that if a lion could talk, we would not understand him. 2 When a lion roars, we do understand him (or her). If a cat purrs, we understand her, too. If the voice of an animal is not heard as message but as art, interesting things start to happen: Nature is no longer inscrutable, some alien puzzle, but instead immediately something beautiful, a source of exuberant song, a tune with some space for us to enter, at once a creative place for humanity to join in.We set up on the wooden deck, listening out over the water. Instruments out of their cases, recording equipment wired and set to go. An American crow (Corvus brachyrhynchos) was in the center of the action, sitting on a branch at the side of the room. He cocked his head, eyed us knowingly. Looking like there was something he wanted to say. [End Page 113]Pestel played a long, low sliding note, followed by a scratchy puff of air. Something strange swooped down next to my feet, shuffled its large black wings. Some kind of ungainly turkey... I read from a plaque on the railing that it was a Palawan peacock pheasant (Polyplectron emphanum). Its quizzical gaze was mute."What are you looking at?" I glared. He stepped cautiously toward the microphone cable, ready to gobble it in his hooked, formidable beak."Hey," I brushed him off. "Stop dancing. Sing!" But no, he was the prancing, silent type.All of a sudden there was a strange voice. A human voice? "Who." I heard. "Who. Who what where why. Who what where why."It was the crow. But not just any crow. He spoke."Did you hear that?" I coaxed Pestel up from the flute."Oh," he said. "That's Mickey. He's been here for years.""Does... (shrink)

It has long been suggested that emotion, especially threatening emotion, facilitates early visual perception to promote adaptive responses to potential threats in the environment. Here, we tested whether and how fearful emotion affects the basic visual ability of visual acuity. An adapted Posner’s spatial cueing task was employed, with fearful and neutral faces as cues and a Vernier discrimination task as the probe. The time course of the emotional attention effect was examined by varying the stimulus onset asynchrony (...) of the cue and probe. Two independent experiments consistently demonstrated that the brief presentation of a fearful face increased visual acuity at its location. The facilitation of perceptual sensitivity was detected at an SOA around 300 ms when the face cues were presented for both 250 ms and 150 ms. This effect cannot be explained by physical differences between the fearful and neutral faces because no improvement was found when the faces were presented inverted. In the last experiment, the face cues were flashed very briefly, and we did not find any improvement induced by the fearful face. Overall, we provide evidence that emotion interacts with attention to affect basic visual functions. (shrink)

Prevailing theories of the neural basis of at least a subset of individuals with autism spectrum disorder include an imbalance of excitatory and inhibitory neurotransmission. These circuitry imbalances are commonly probed in adults using auditory steady-state responses to elicit coherent electrophysiological responses from intact circuitry. Challenges to the ASSR methodology occur during development, where the optimal ASSR driving frequency may be unknown. An alternative approach is the amplitude-modulated sweep in which the amplitude of a tone is modulated as a sweep (...) from 10 to 100 Hz over the course of ∼15 s. Phase synchrony of evoked responses, measured via intra-trial coherence, is recorded as a function of frequency. We applied such AM sweep stimuli bilaterally to 40 typically developing and 80 children with ASD, aged 6–18 years. Diagnoses were confirmed by DSM-5 criteria as well as autism diagnostic observation schedule observational assessment. Stimuli were presented binaurally during MEG recording and consisted of 20 AM swept stimuli with a duration of ∼30 s each. Peak intra-trial coherence values and peak response frequencies of source modeled responses were examined. First, the phase synchrony or inter-trial coherence of the ASSR is diminished in ASD; second, hemispheric bias in the ASSR, observed in typical development, is maintained in ASD, and third, that the frequency at which the peak response is obtained varies on an individual basis, in part dependent on age, and with altered developmental trajectories in ASD vs. TD. Finally, there appears an association between auditory steady-state phase synchrony and clinical assessment of language ability/impairment. We concluded that the AM sweep stimulus provides a mechanism for probing ASSR in an unbiased fashion, during developmental maturation of peak response frequency, peak frequencies vary, in part due to developmental age, and importantly, ITC at this peak frequency is diminished in ASD, with the degree of ITC disturbance related to clinically assessed language impairment. (shrink)

Why do aircraft fly? How do their wings support them? In the early years of aviation, there was an intense dispute between British and German experts over the question of why and how an aircraft wing provides lift. The British, under the leadership of the great Cambridge mathematical physicist Lord Rayleigh, produced highly elaborate investigations of the nature of discontinuous flow, while the Germans, following Ludwig Prandtl in Göttingen, relied on the tradition called “technical mechanics” to explain the flow of (...) air around a wing. Much of the basis of modern aerodynamics emerged from this remarkable episode, yet it has never been subject to a detailed historical and sociological analysis. In The Enigma of the Aerofoil, David Bloor probes a neglected aspect of this important period in the history of aviation. Bloor draws upon papers by the participants—their restricted technical reports, meeting minutes, and personal correspondence, much of which has never before been published—and reveals the impact that the divergent mathematical traditions of Cambridge and Göttingen had on this great debate. Bloor also addresses why the British, even after discovering the failings of their own theory, remained resistant to the German circulation theory for more than a decade. The result is essential reading for anyone studying the history, philosophy, or sociology of science or technology—and for all those intrigued by flight. (shrink)

We need to rethink our attitudes to the bodies of the dead in order to increase our willingness to donate organs and tissues My father died aged 87 on January 20, 1998. It was the day of his 42nd wedding anniversary. He been admitted to a major teaching hospital with jaundice of unknown origin. He died after a medical procedure and a delay in diagnosis and management of bleeding after the procedure. I believed it was important to understand why he (...) had died and what the underlying cause of his jaundice had been. I requested an autopsy. My father was not only the best father a person could have had, but my closest friend. The circumstances of his death were especially sad for me. I was on a plane while he was allowed to die of blood loss in intensive care over a period of hours, becoming progressively more delirious and experiencing the slow motion throes of death. I was told he had died while I was still in the air. My first thought was that I would never again see him or hear his deep chuckle. I would never again feel the gentle touch of his large hands. He would never see my daughter grow up as he had wanted to, playing, and laughing on the beach. I have witnessed many autopsies. As medical students, we had to attend autopsy each morning at 8.30 am as a part of pathology in fourth year medicine. Before this, we had two years of anatomy dissection, probing every crevice of the formalin fixed human body. I learnt an immense amount from these activities. But I also knew how gruesome the autopsy is. I knew that an autopsy would mean that my father would be dismembered. But I had no hesitation in requesting …. (shrink)

We investigated whether adults have attentional bias toward infant faces, whether it is moderated by infant facial expression, and the predictive effect of the adult attachment state on it. One hundred unmarried nulliparous college students [50 men and 50 women; aged 17–24 years ] were recruited. Each completed a self-report questionnaire—the Chinese version of the State Adult Attachment Measure, and a dot-probe task with a stimulus presentation duration of 500 ms, which used 192 black-and-white photographs of 64 people (...) as the experimental stimuli. The results showed that, at the duration of 500 ms, individuals' attentional bias toward infant faces disappeared, regardless of the facial expression. However, when the interaction between avoidant attachment state and face was controlled, the attentional bias was significant again, and the avoidant attachment state negatively predicted individuals' attentional bias toward infant faces. This indicates that at the suprathreshold stage, there are individual differences in the attentional bias toward infant faces, and high avoidant attachment will weaken individuals' attentional bias toward infant faces. This study advances previous studies that focused only on individuals' attention to infant faces occurring at the early processing stage of attention. The results provide direction for interventions; specifically, changing the attachment state of avoidant individuals can affect their attention to infants, which may promote the establishment of parent–child relationships. (shrink)

ABSTRACTPrior research on attention bias in anxious youth, often utilising a visual dot probe task, has yielded inconsistent findings, which may be due to how bias is assessed and/or variability in the phenomenon. The present study utilises eye gaze tracking to assess attention bias in socially anxious adolescents, and explores several methodological and within-subject factors that may contribute to variability in attention bias. Attention bias to threat was measured in forty-two treatment-seeking adolescents diagnosed with Social Anxiety Disorder. Bias scores (...) toward emotional stimuli and bias scores away from emotional stimuli were explored. Bias scores changed between vigilance and avoidance within individuals and over the course of stimulus presentation. These differences were not associated with participant characteristics nor with self-reported social anxiety symptoms. However, clinician rated severity of social anxiety, explained a signific... (shrink)

Short-term or working memory provides temporary storage of information in the brain after an experience and is associated with conscious awareness. Neurons sensitive to the multiple stimulus attributes comprising an experience are distributed within many brain regions. Such distributed cell assemblies, activated by an event, are the most plausible system to represent the WM of that event. Studies with a variety of imaging technologies have implicated widespread brain regions in the mediation of WM for different categories of information. Each (...) kind of WM may thus be expected to involve many brain regions rather than a local, uniquely dedicated set of cells. Neurons in a distributed “cell assembly” may be self-selected by their temporally coherent activations. The process by which this fragmented representation of the recent past is reassembled to accomplish essentially automatic and reliable recognition of a recurrent event constitutes an important problem. One plausible mechanism to achieve the identification of past with previous events would require that the representational system mediating WM must coexist in spatial extent and somehow overlap in temporal activation with cell ensembles registering input from subsequent events. The detection of such a postulated mechanism required an experimental approach which would focus upon spatial patterns of coherent activation while information about different events was stored in WM and retrieved, rather than focusing upon the temporal sequences of activation in localized regions of interest. For this purpose, the familiar delayed matching from sample task was modified. A series of information-free flashes, or “noncontingent probes,” was presented before an initial series of visual information items, the Priming Sample, which were to be held in WM during a Delay Period. A second series of visual information items were then presented, the Matching Sample. The task required detection of any item in the second series which had beenabsentfrom the initial series. Thirty such trials with a particular category of visual information constituted a single task. Several DMS tasks with this standardized design, but with different categories of visual information, were presented within each test session. The information categories included letters of the alphabet, single digit numbers, or faces from a school yearbook. Event-related potentials , were computed from 21 standardized electrode placements, separately for information-free probes and for information items in each interval of the trials within a task. Because each electrode is particularly sensitive to coherent activation of neurons in the immediately underlying brain regions, topographic maps were constructed and interpolated across the surface of the scalp. The momentary fluctuations of the resulting voltage “landscapes” throughout the task were then subjected to quantitative analysis. Distinctive landscapes sometimes persisted for prolonged periods, implying sustained engagement of very large populations of neurons. “Difference landscapes” were constructed by subtraction of topographic maps evoked by noncontingent probes during the Delay Period from maps of probe ERPs before the presentation of the initial information in the Priming Sample. Such probe difference landscapes displayed recurrent high similarity to momentary landscapes elicited during subsequent presentation of the information items in the Matching Sample. It seemed as if the distributed cell assembly continuously engaged by mediation of WM of the diverse attributes of the initial stimuli was being dynamically compared to the ensembles engaged by registration of the subsequent stimuli. Spatial Principal Component Analysis was applied to the sequences of momentary voltage landscapes observed throughout trials of each task. This method sought a small number of spatial patterns with which these large sets of inhomogeneous spatial distributions of voltage could be reconstructed. This is the spatial analog of the reconstruction of local ERPs by temporal principal components, as often described previously. Five Spatial Principal Components were found which accounted for about 90% of the total variance of voltage across the surface of the scalp throughout every task. Theloadings,or distinguishing topographic features, of these SPCs, were highly similar during every cognitive task for every subject. However,factor scores,or relative average contribution to the overall voltage distributions, of the different SPCs varied substantially among subjects between the tasks and momentarily within successive intervals of each task. These five SPCs may reflect coherent activation of huge distributed ensembles of neurons which comprise independent but interacting functional brain subsystems. These subsystems may correspond to basic resources available to individuals for allocation to mediate conscious evaluation of information during cognitive activity, providing a filter to bind together fractionated representations of the past to evaluate the present. (shrink)

The dynamics of resource allocation to pictures of spiders and other animals in spider-fearful participants was investigated. The task of the participants was to respond rapidly and accurately to various probe stimuli superimposed on pictures of different animals. These were arguably fear relevant (spiders, snakes, and wolves) and fear irrelevant (beetles, turtles, and rabbits). The probes were shown with different stimulus onset asynchronies (SOAs) from picture onset to address the dynamics of resource allocation. A larger allocation of resources (...) to spider pictures than to pictures of all other animals, with no difference between the latter regarding resource allocation was found. For the task that demanded more resources the fear-related physiological responses decreased, suggesting that controlled processing modulates fear responses. (shrink)

Phantasmagoria explores ideas of spirit and soul since the Enlightenment; it traces metaphors that have traditionally conveyed the presence of immaterial forces, and reveals how such pagan and Christian imagery about ethereal beings are embedded in a logic of the imagination, clothing spirits in the languages of air, clouds, light and shadow, glass, and ether itself. Moving from Wax to Film, the book also discusses key questions of imagination and cognition, and probes the perceived distinctions between fantasy and deception; it (...) uncovers a host of spirit forms--angels, ghosts, fairies, revenants, and zombies--that are still actively present in contemporary culture. It reveals how their transformations over time illuminate changing ideas about the self. Phantasmagoria also tells the accompanying story about the means used to communicate such ideas, and relates how the new technologies of the Victorian era were applied to figuring the invisible and the impalpable, and how magic lanterns (the phantasmagoria shows themselves), radio, photography and then moving pictures spread ideas about spirit forces. As the story unfolds, the book features the many eminent men and women--scientists and philosophers--who in the Society of Psychical Research applied their considerable energies to the question of other worlds and other states of mind: they staged trance seances in which mediums produced spirit phenomena, including ectoplasm. The book shows how this often embarrassing story connects with some of the important scientific discoveries of a fertile age, in psychology and physics. Over a sequence of twenty-eight chapters, with over thirty illustrations in color and black and white, Phantasmagoria thus tells an unexpected and often uncomfortable story about shifts in thought about consciousness and the individual person, from the first public waxworks portraits at the end of the eighteenth century to stories of hauntings, possession, and loss of self as in the case of the zombie, a popular figure of soulessness, in modern times. (shrink)

Categorization and memory for specific items are fundamental processes that allow us to apply knowledge to novel stimuli. This study directly compares categorization and memory using delay match to category (DMC) and delay match to sample (DMS) tasks. In DMC participants view and categorize a stimulus, maintain the category across a delay, and at the probe phase view another stimulus and indicate whether it is in the same category or not. In DMS, a standard item working memory (...) task, participants encode and maintain a specific individual item, and at probe decide if the stimulus is an exact match or not. Constrained Principal Components Analysis was used to identify and compare activity within neural networks associated with these tasks, and we relate these networks to those that have been identified with resting state-fMRI. We found that two frontoparietal networks of particular interest. The first network included regions associated with the dorsal attention network and frontoparietal salience network; this network showed patterns of activity consistent with a role in rapid orienting to and processing of complex stimuli. The second uniquely involved regions of the frontoparietal central executive network; this network responded more slowly following each stimulus and showed a pattern of activity consistent with a general role in role in decision-making across tasks. Additional components were identified that were associated with visual, somatomotor and default mode networks. (shrink)

Previous studies have found a link between red and aggressive behavior. For example, athletes who wear red uniforms in sports are considered to have a competitive advantage. So far, most previous studies have adopted self-report methods, which have low face validity and were easily influenced by the social expectations. Therefore, the study used two implicit methods to further explore the association between red and aggressiveness. A modified Stroop task was used in Experiment 1 to probe college students’ differences between (...) “congruent” tasks and “incongruent” tasks. Result showed that participants responded more quickly to the congruent tasks than the incongruent tasks. Then, in order to adapt to the competitive context, Experiment 2 used an implicit association test with photos of athletes as the stimulus to college students and athletes to evaluate “congruent” tasks as well as “incongruent” tasks, respectively. According to the results, both college students and athletes respond faster to congruent tasks than to incongruent tasks. Besides, athletes’ reactions to the red–aggressiveness association are faster than college students, which may relate to the athletes’ professional experience. The athletes may be more aggressive and impulsive. Overall, the study has attempted to examine the association between red and aggressiveness through implicit methods, but in the future, researches are need to find a deep association from brain mechanism aspect. (shrink)

The nonconscious orientation of attention to famous faces was investigated using masked 17 ms stimulus exposure. Each trial presented a simultaneous pair of one famous and one unfamiliar face, matched on physical characteristics, one each in left visual field (LVF) and right visual field (RVF). These were followed by a dot probe in either LVF or RVF to which participants made a speeded two-alternative forced-choice discrimination response. Participants subsequently evaluated the affective valence (good/evil) of the famous persons on (...) a 7-point scale. Higher accuracy of dot probe discrimination in the same visual field (VF) as the famous face suggested that attention was oriented towards faces of persons evaluated “good”, but a reverse orientation effect was observed for those evaluated “evil”. The awareness check presented the same face pairs under the same conditions, and participants were at chance in a task of selecting the famous face in each pair. The results suggest that famous faces can be identified without awareness, and that attention is attracted by the faces of famous persons not regarded as “evil”. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Buddhist-Christian Studies 22 (2002) 201-202 [Access article in PDF] Conference on Pure Land Buddhism in Dialogue with Christian Theology James Fredericks Loyola Marymount University As Charlie Parker devotees will attest, improvisation at its most thrilling, if not its most ingenious, is often the result of careful planning. Cannot something similar be said of interreligious dialogue? All our planning and study are best put to use when they suddenly become (...) mere prologue to an encounter that has forced us off the well-trodden path. A dialogue meeting at Loyola Marymount University, September 9-14, 2001, began with much planning and became highly improvisational on September 11th.The roots of this conference go back to discussions between Dennis Hirota and myself in Kyoto in 1998-1999. The two of us are interested in contributing to the future development of Shin Buddhism by placing it in dialogue with Christian theology. The focus here is on Christian theology as one aspect of Christianity's response to the modern world. We are both interested in investigating various theological methods as Christian responses to modernity, and the contributions these methods have made to the reform and renewal of Christian institutions. The ulterior purpose of these investigations is to think in new ways about how a Buddhist "theology" might contribute to the institutional reform and religious renewal of Shin Buddhism.A first dialogue meeting was held at Chikushi Jogakuen University (Dazaifu, Japan) in June of 2000. Participants included faculty from Chikushi Jogakuen, Charlie Hallisey (then of Harvard University), Peter McCormick (International Academy for Philosophy, Liechtenstein), and me (Loyola Marymount University). A second meeting was held at Loyola Marymount in September 2001. For one week, beginning September 6th, meetings were held at the Shin Buddhist temple and a neighboring Roman Catholic parish in the Little Tokyo district of Los Angeles, followed by an academic conference at Loyola Marymount starting on Monday, September 10th. These meetings brought together faculty from Chikushi Jogakuen and Loyola Marymount, Shin Buddhist specialists from the Eastern Buddhist Society in Tokyo, ministers from the Los Angeles Nishi and Higashi Honganji Temples, Charlie Hallisey (Wisconsin), and John Ross Carter (Colgate University). The visiting Buddhists had a chance to meet with the Buddhist-Catholic dialogue group in Los Angeles. Papers were presented on a number of subjects, including (1) Christian theology's [End Page 201] contribution to institutional reform and religious renewal in recent Roman Catholic history and its implications for Shin Buddhism in both the United States and Japan; (2) theological method and moral theology in relation to end of life issues from both a Shin and Christian perspective; (3) truth and history in interreligious understanding; (4) Shin Buddhism, Christianity and religious responses to social discrimination; and (5) Christian theology as a stimulus to the development of a Shin Buddhist theology.On the morning of September 11th, dialogue as formal academic presentations ended and dialogue as spontaneous improvisation began. With U.S. air transportation closed down by the federal government, prospects for return flights to Japan were indefinitely postponed. A planned outing to watch Ichiro Suzuki (of the Seattle Mariners) play the Angels had to be canceled (Anaheim stadium was also closed). Instead, Christians and Buddhists, Americans and Japanese suddenly were brought together in ways they could not have predicted and began to improvise. The campus ministry of Loyola Marymount organized an impromptu mass for the entire university on the evening of September 11th. The Buddhist visitors were given a place of honor at the liturgy and publicly welcomed as guests of the Catholic community. The psalm response for the mass was a musical setting of the words, "Shepherd me oh Lord, beyond my wants, beyond my fears, from death into life." In the days that followed, this text became the basis for very affecting conversations among the Buddhists and the Christians in response to the terrorist attacks. From the Shin perspective, Buddhists were able to bring a depth of meaning to these words even as they were interested in what the psalm might mean to Christians.Like improvisation in jazz, interreligious dialogue is sometimes at its... (shrink)

The question of whether non-human animals are conscious is of fundamental importance. There are already good reasons to think that many are, based on evolutionary continuity and other considerations. However, the hypothesis is notoriously resistant to direct empirical test. Numerous studies have shown behaviour in animals analogous to consciously-produced human behaviour. Fewer probe whether the same mechanisms are in use. One promising line of evidence about consciousness in other animals derives from experiments on metamemory. A study by Hampton (Proc (...) Natl Acad Sci USA 98(9):5359–5362, 2001) suggests that at least one rhesus macaque can use metamemory to predict whether it would itself succeed on a delayed matching-to-sample task. Since it is not plausible that mere meta-representation requires consciousness, Hampton’s study invites an important question: what kind of metamemory is good evidence for consciousness? This paper argues that if it were found that an animal had a memory trace which allowed it to use information about a past perceptual stimulus to inform a range of different behaviours, that would indeed be good evidence that the animal was conscious. That functional characterisation can be tested by investigating whether successful performance on one metamemory task transfers to a range of new tasks. The paper goes on to argue that thinking about animal consciousness in this way helps in formulating a more precise functional characterisation of the mechanisms of conscious awareness. (shrink)

The present work investigates the memory accessibility of linguistically focused elements and the representation of the alternatives for these elements in Working Memory and in delayed recognition memory in the case of the Hungarian pre-verbal focus construction. In two probe recognition experiments we presented preVf and corresponding focusless neutral sentences embedded in five-sentence stories. Stories were followed by the presentation of sentence probes in one of three conditions: the probe was identical to the original sentence in the story, (...) the focused word was replaced by a semantically related word and the target word was replaced by a semantically unrelated but contextually suitable word. In Experiment 1, probes were presented immediately after the stories measuring WM performance, while in Experiment 2, blocks of six stories were presented and sentences were probed with a 2-minute delay measuring delayed recognition memory performance. Results revealed an advantage of the focused element in immediate but not in delayed retrieval. We found no effect of sentence type on the recognition of the two different probe types in WM performance. However, results pertaining to the memory accessibility of focus alternatives in delayed retrieval showed an interference effect resulting in a lower memory performance. We conclude that this effect is indirect evidence for the enhanced activation of focus alternatives. The present work is novel in two respects. First, no study has been conducted on the memory representation of focused elements and their alternatives in the case of the structurally marked Hungarian pre-verbal focus construction. Second, to our knowledge, this is the first study that investigates the focus representation accounts for WM and delayed recognition memory using the same stimuli and same measured variables. Since both experiments used exactly the same stimulus set, and they only differed in terms of the timing of recognition probes, the principle of ceteris paribus fully applied with respect to how we addressed our research question regarding the two different memory systems. (shrink)

Somatic complementation by fusion of two mutant cells and mixing of their cytoplasms occurs when the genetic defect of one fusion partner is cured by the functional gene product provided by the other. We have found that complementation of mutational defects in the network mediating stimulus‐induced commitment and sporulation of Physarum polycephalum may reflect time‐dependent changes in the signaling state of its molecular building blocks. Network perturbation by fusion of mutant plasmodial cells in different states of activation, and the (...) time‐resolved analysis of somatic complementation effects can be used to systematically probe network structure and dynamics. Time‐resolved somatic complementation quantitatively detects regulatory interactions between the functional modules of a network, independent of their biochemical composition or subcellular localization, and without being limited to direct physical interactions. BioEssays 25:950–960, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

The current contents of visual working memory can be disrupted by previously formed memories. This phenomenon is known as proactive interference, and it can be used to index the availability of old memories. However, there is uncertainty about the robustness and lifetime of proactive interference, which raises important questions about the role of temporal factors in forgetting. The present study assessed different factors that were expected to influence the persistence of proactive interference over an inter-trial interval in the visual recent (...) probes task. In three experiments, participants encoded arrays of targets and then determined whether a single probe matched one of those targets. On some trials, the probe matched an item from the previous trial, whereas on other trials the probe matched a more distant item. Prior studies have found that recent negative probes can increase errors and slow response times in comparison to non-recent negative probes, and this offered a behavioral measure of proactive interference. In Experiment 1, factors of array size and inter-trial interval were manipulated in the recent probes task. There was a reduction in proactive interference when a longer delay separated trials on one measure, but only when participants encoded two targets. When working memory capacity was strained by increasing the array size to four targets, proactive interference became stronger after the long delay. In Experiment 2, the inter-trial interval length was again manipulated, along with stimulus novelty. Proactive interference was modestly stronger when a smaller number of stimuli were used throughout the experiment, but proactive interference was minimally affected by the inter-trial interval. These findings are problematic for temporal models of forgetting, but Experiment 3 showed that proactive interference also resisted disruption produced by a secondary task presented within the inter-trial interval. Proactive interference was constantly present and generally resilient to the different manipulations. The combined data suggest a relatively durable, passive representation that can disrupt current working memory under a variety of different circumstances. (shrink)

Long-term potentiation is one of the most extensively studied forms of neuroplasticity and is considered the strongest candidate mechanism for memory and learning. The use of event-related potentials and sensory stimulation paradigms has allowed for the translation from animal studies to non-invasive studies of LTP-like synaptic plasticity in humans. Accumulating evidence suggests that synaptic plasticity as measured by stimulus-specific response modulation is reduced in neuropsychiatric disorders such as major depressive disorder, bipolar disorders and schizophrenia, suggesting that impaired synaptic plasticity (...) plays a part in the underlying pathophysiology of these disorders. This is in line with the neuroplasticity hypothesis of depression, which postulate that deficits in neuroplasticity might be a common pathway underlying depressive disorders. The current study aims to replicate and confirm earlier reports that visual stimulus-specific response modulation is a viable probe into LTP-like synaptic plasticity in a large sample of healthy adults. Further, this study explores whether impairments in LTP-like synaptic plasticity is associated with self-reported subclinical depressive symptoms and stress in a healthy population. Consistent with prior research, the current study replicated and confirmed reports demonstrating significant modulation of visual evoked potentials following visual high-frequency stimulation. Current results further indicate that reduced LTP-like synaptic plasticity is associated with higher levels of self-reported symptoms of depression and perceived stress. This indicate that LTP-like plasticity is sensitive to sub-clinical levels of psychological distress, and might represent a vulnerability marker for the development of depressive symptoms. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Extra Ear:Ear on the Arm BlenderStelarc Click for larger view View full resolutionFigure 1.Blender. Teknikunst—Meat Market, Melbourne 2005. Photograph: Stelarc. Collaborator Nina Sellars stands with the Blender during an installation photograph. Text credit: K. Conden and A. Douglas. Click for larger view View full resolutionFigure 2.Blender (3D Model). Teknikunst—Meat Market, Melbourne 2005. Image: Adam Fiannaca. The installation itself stands at just over 1.6 meters high and is anthropomorphic in (...) scale and structure. Text credit: K. Conden and A. Douglas. Click for larger view View full resolutionFigure 3.Blender. Teknikunst—Meat Market, Melbourne 2005. Photograph: Stelarc. Every few minutes the Blender automatically circulates or "blends" its contents via a system of compressed air pumps and a pneumatic actuator. Text credit: K. Conden and A. Douglas.[End Page 117] Click for larger view View full resolutionFigure 4.Ear Scaffold. Los Angeles, Melbourne 2006. Photographer: Nina Sellars. The preoperative scaffolding that was surgically placed below the skin's surface of performance artist Stelarc. Text credit: R. Ferro. Click for larger view View full resolutionFigure 5.Blender (Biomaterial). Teknikunst—Meat Market, Melbourne 2005. Photograph: Cameron Jones. Both artists, Stelarc and Nina Sellars, undertook liposuction operations specifically for the purpose of this new work and have succeeded in securing the sanitized isolation and, most importantly, the legal ownership of the remnants of the procedures. Text credit: K. Conden and A. Douglas. Click for larger view View full resolutionFigure 6.Hole Hooks Forceps. As a guest at Cornell University's conference "Digital Bodies" in 2001, Stelarc spoke of his desire to implant an ear that could pick up sound. His plans become a reality in the photograph taken during surgery. Text credit: R. Ferro. Click for larger view View full resolutionFigure 7.Extra Ear: Ear on the Arm. Los Angeles, Melbourne 2006. Photographer: Nina Sellars. Stelarc's future plans are to implant Bluetooth technology into the Ear on the Arm in a subsequent surgery so that the ear will pick up sound which will be transmitted via the Internet. Text credit: R. Ferro. Click for larger view View full resolutionFigure 8.Blender (Sterile Hood). Teknikunst—Meat Market, Melbourne 2005. Photograph: Stelarc. The biomaterials are now housed within the Blender's industrial casing, on exhibition at the Meat Market Gallery B in North Melbourne until August 18. Text credit: K. Conden and A. Douglas.[End Page 118]Stelarc- Biographical NotesStelarc is an Australian artist who has performed extensively in Japan, Europe, and the USA—including new music, dance festivals, and experimental theater. He has used medical instruments, prosthetics, robotics, Virtual Reality systems, and the Internet to explore alternate, intimate, and involuntary interfaces with the body. He has performed with a THIRD HAND, a VIRTUAL ARM, a VIRTUAL BODY and a STOMACH SCULPTURE. He has acoustically and visually probed the body—having amplified brainwaves, blood-flow and muscle signals and filmed the inside of his lungs, stomach, and colon, approximately two meters of internal space. He has done twenty-five body SUSPENSIONS with insertions into the skin, in different positions and varying situations in private gallery spaces and in remote locations.For FRACTAL FLESH, as part of Telepolis in 1995, he developed a touch-screen interfaced Muscle Stimulation System, enabling remote access, actuation, and choreography of the body. Performances such as PING BODY and PARASITE (1996, 1997) probe notions of telematic scaling and the engineering of external, extended, and virtual nervous systems for the body using the Internet. In 1998 for Kampnagel, he completed EXOSKELETON—a pneumatically powered six-legged walking machine actuated by arm gestures. During 2000, he completed an EXTENDED ARM—a manipulator with eleven degrees-of-freedom that extends his arm to primate proportions and a MOTION PROSTHESIS—an intelligent, compliant servo-mechanism that enables the performance of precise, repetitive, and accelerated prompting or programming of the arms in real time. In 2002, with the collaboration of the Evolutionary and Adaptive Systems Group, COGs, University of Sussex, and TNTU, the HEXAPOD robot prototype was developed. The six-legged MUSCLE MACHINE was constructed with the assistance of The Nottingham Trent University Engineering team, using fluidic rubber muscle actuators. The PROSTHETIC... (shrink)

We need to rethink our attitudes to the bodies of the dead in order to increase our willingness to donate organs and tissuesMy father died aged 87 on January 20, 1998. It was the day of his 42nd wedding anniversary. He been admitted to a major teaching hospital with jaundice of unknown origin. He died after a medical procedure and a delay in diagnosis and management of bleeding after the procedure. I believed it was important to understand why he had (...) died and what the underlying cause of his jaundice had been. I requested an autopsy.My father was not only the best father a person could have had, but my closest friend. The circumstances of his death were especially sad for me. I was on a plane while he was allowed to die of blood loss in intensive care over a period of hours, becoming progressively more delirious and experiencing the slow motion throes of death. I was told he had died while I was still in the air. My first thought was that I would never again see him or hear his deep chuckle. I would never again feel the gentle touch of his large hands. He would never see my daughter grow up as he had wanted to, playing, and laughing on the beach.I have witnessed many autopsies. As medical students, we had to attend autopsy each morning at 8.30 am as a part of pathology in fourth year medicine. Before this, we had two years of anatomy dissection, probing every crevice of the formalin fixed human body. I learnt an immense amount from these activities. But I also knew how gruesome the autopsy is. I knew that an autopsy would mean that my father would be dismembered. But I had no hesitation in requesting …. (shrink)

People often fail to detect large changes to scenes, provided that the changes occur during a visual disruption. This phenomenon, known as ''change blindness,'' occurs both in the laboratory and in real-world situations in which changes occur unexpectedly. The pervasiveness of the inability to detect changes is consistent with the theoretical notion that we internally represent relatively little information from our visual world from one glance at a scene to the next. However, evidence for change blindness does not necessarily imply (...) the absence of such a representation-people could also miss changes if they fail to compare an existing representation of the pre-change scene to the post-change scene. In three experiments, we show that people often do have a representation of some aspects of the pre-change scene even when they fail to report the change. And, in fact, they appear to ''discover'' this memory and can explicitly report details of a changed object in response to probing questions. The results of these real-world change detection studies are discussed in the context of broader claims about change blindness. (shrink)

The question of whether non-human animals are conscious is of fundamental importance. There are already good reasons to think that many are, based on evolutionary continuity and other considerations. However, the hypothesis is notoriously resistant to direct empirical test. Numerous studies have shown behaviour in animals analogous to consciously-produced human behaviour. Fewer probe whether the same mechanisms are in use. One promising line of evidence about consciousness in other animals derives from experiments on metamemory. A study by Hampton (Proc (...) Natl Acad Sci USA 98(9):5359–5362, 2001 ) suggests that at least one rhesus macaque can use metamemory to predict whether it would itself succeed on a delayed matching-to-sample task. Since it is not plausible that mere meta-representation requires consciousness, Hampton’s study invites an important question: what kind of metamemory is good evidence for consciousness? This paper argues that if it were found that an animal had a memory trace which allowed it to use information about a past perceptual stimulus to inform a range of different behaviours, that would indeed be good evidence that the animal was conscious. That functional characterisation can be tested by investigating whether successful performance on one metamemory task transfers to a range of new tasks. The paper goes on to argue that thinking about animal consciousness in this way helps in formulating a more precise functional characterisation of the mechanisms of conscious awareness. (shrink)

We examined the updating of decisions made during visuo-motor processing when two sequentially presented stimuli, Prime1 and Prime2, primed discriminative responses to a following probe. In Experiment 1, the visibility of the two primes was suppressed or left intact by varying the stimulus onset asynchrony of the stimuli immediately following them. In Experiment 2, the visibility of Prime2 was suppressed or left intact by varying its spatial separation from the following probe. We found that Prime2 dominated the (...) effects of Prime1; that Prime2’s updating was stronger when the Prime2–probe SOA was 200 as compared to 53 ms; and that Prime2’s updating was weaker when the Prime2–probe spatial separation was 58 as compared to 0 minarc. We conclude that these effects are due to an interaction of spatial attention and the state of processing of Prime2. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:On the NoseDavid F. Bell (bio)I recently underwent a COVID test. As the technician inserted the rather ominous cotton-tipped probe into my nostril, she told me that it was going to feel as if she were tickling my brain. Indeed… This experience, shared by many during the past three years, and likely multiple times, prompted me to think about my nose. Not since cocaine reentered American mainstream culture (...) in the 1970s and '80s—and found its way into countless movies that reflect the trend—has the nose been so central to a certain state of public life. It's difficult to find a film dealing with American culture from that period and beyond, from Scarface to The Wolf of Wall Street, in which there is not a scene depicting characters snorting the obligatory line or spoon of cocaine. Yes, snorting, sniffing, sneezing, ingesting the line through the nose and finishing leftover dust by collecting it with a moist finger, rubbing it lovingly against the front gum of the mouth. Freud's "Über Coca" looms ominously in the background, the work of a phase in Freud's professional career complicated by his obscure relationships with Parke-Davis (now a subsidiary of Pfizer) and Merck, pharmaceutical companies that supplied him with early samples to tickle his nose (Freud; Merkel). The Sacklers of the moment. In our day, Pfizer wants to transform our noses into defenses against the virus rather than conduits toward mind-altering dreams. In the wake of the Freud and William Halsted cocaine addictions chronicled by Howard Merkel, the irony of the contemporary link between Pfizer and the nose is patent.The nose: that orifice through which the virus creeps, the first stage in breathing, the first filter for air-borne pollutants. Recently, important immunological analyses of COVID have focused on the question of viral load, how much virus is necessary to overcome the nose's filtering function and reach the deeper airways leading to the lungs. The processes triggered by any of the major vaccines prepare antibody blueprints and actual antibodies that can be dispatched to the linings of the nose to counter the virus as soon as the body detects its presence. The Delta, Omicron, and subsequent variants remind us that the virus has mechanisms to challenge this response, namely, increased viral load that intensifies transmissibility and the potential to overwhelm antibodies. It seems, however, that [End Page 231] so-called breakthrough infections are still well controlled by the body's vaccinated immune system. Hysteria about the dangers of such incursions is partially a product of biased and often incorrect or incomplete media coverage of the COVID vaccine, which has terrified the vaccinated and fueled the skepticism of the unvaccinated.The virus tries to overpower and confuse the filtering nose in another way, more immediately apparent to our conscious selves. As many as eighty-five percent of COVID infections result in the loss of smell, generally recovered in about two to three weeks in sickened people who overcome the infection. About five percent of COVID victims, however, have not recovered their sense of smell six months or more after they have shed the virus.1 What might it mean to lose one's sense of smell? In our vision-oriented culture, both sound (the ear) and smell (the nose) have been less recognized as primary defense mechanisms than in other cultures. When one hears a sound, the first reaction is to prepare for a threat, before the sonic source is seen or understood. Orientation in the world, knowing from which direction the sound emanates, is key to preparing the body for an encounter with an unknown phenomenon: "To sound (an alarm) means to warn. Isn't any emerging sound understood as a warning? Any unexpected sonic occurrence is seen as an indication of something that is to come and that must be clarified rapidly" (Deshays 34). By the same token, to sample surroundings by sniffing what is in the air signals whether one should inhale or somehow try to hold one's breath in search of cleaner, more palatable air. Without olfaction, we are at potentially heightened risk of asphyxiation. We are more likely to... (shrink)

Predictable somatosensory feedback leads to a reduction in tactile sensitivity. This phenomenon, called tactile suppression, relies on a mechanism that uses an efference copy of motor commands to help select relevant aspects of incoming sensory signals. We investigated whether tactile suppression is modulated by the task-relevancy of the predicted consequences of movement and the intensity of related somatosensory feedback signals. Participants reached to a target region in the air in front of a screen; visual or tactile feedback indicated the reach (...) was successful. Furthermore, tactile feedback intensity varied across two groups of participants. We measured tactile suppression by comparing detection thresholds for a probing vibration applied to the finger either early or late during reach and at rest. As expected, we found an overall decrease in late-reach suppression, as no touch was involved at the end of the reach. We observed an increase in the degree of tactile suppression when strong tactile feedback was given at the end of the reach, compared to when weak tactile feedback or visual feedback was given. Our results suggest that the extent of tactile suppression can be adapted to different demands of somatosensory processing. Downregulation of this mechanism is invoked only when the consequences of missing a weak movement sequence are severe for the task. The decisive factor for the presence of tactile suppression seems not to be the predicted action effect as such, but the need to detect and process anticipated feedback signals occurring during movement. (shrink)

“There ceases to be any reason to count awareness as an essential trait of observation.”-from “Stimulus and Meaning”As W. V. Quine sees it we must, in the interests of science, resist “the old tendency to associate observation sentences with a subjective sensory subject matter,” because such sentences are “meant to be the intersubjective tribunal of scientific hypotheses“; observation sentences are meant to be the independent and objective control of scientific theory. Accordingly, Quine has developed a behaviouristic operational definition of (...) an observation sentence for the purpose of dispelling the air of subjectivity which surrounds the notion of observation.In this paper I argue that his observation-sentence definition, or criterion, fails to fulfil this purpose. In the first half of the paper, I describe in particular the kind of subjectivism which most worries Quine-what he calls the epistemological nihilism of Hanson, Kuhn and Polanyi-and I then turn to Quine's remedy, his observation criterion. (shrink)

This study aims to determine the opinions of teachers of Religious Culture and Ethics Course (DKAB) about subject-based classroom application in-depth. The research has been carried from qualitative research methods with a case study design. In order to determine the working group of the study, criteria sampling was used in the first stage, and the maximum diversity sampling method was used in the next step. The sample of this research consists of 8 DKAB teachers working in Ankara province. A semi-structured (...) interview form has been used as a data collection tool in the study. The data of the qualitative of this research has been analyzed with both descriptive and content analysis by NVivo 10 program. In order to ensure validity and reliability in the study, credibility, transferability, consistency, and verifiability strategies have been used. When the research data were analyzed, four themes were formed: positive opinions about the application, negative opinions and problems related to the application, contribution of the practice to religious education and training, and recommendations about the application. DKAB teachers find the application more positive than the classroom system. It has been found that the practice of subject-based classrooms is a motivational tool for Primary School students, while it causes some problems for lower secondary school and upper secondary school students.Summary: Learning environments are among the key elements in the acquisition of 21st-century skills. Classrooms are also a part of the learning environment. Classes are the learning environment in which teachers and students spend most of their education and training process. In this context, subject-based classroom application is one of the preferred methods in the arrangement of classrooms.Subject-based classroom application means that the teachers have a special classroom related to their branches in the school building, and students attend the teacher's classroom according to the syllabus. In this practice, the teacher can decorate walls, floor, ceiling, column, and beam of the classroom with students’ study materials such as banner, poster, painting, cartoon to make the course more effective and efficient and to create a psychological atmosphere called classroom atmosphere-air.This application aims to activate the student by enriching the classroom and make learning effective and efficient. The classroom equipped with appropriate equipment and materials provides a favorable environment for the implementation of effective teaching strategies. The application can create “class/classroom culture” by using ordinary meanings and symbols related to the course. It provides students the opportunity to exhibit their products and contributes to students' self-regulation skills development. Besides, real-life practices or practices close to reality can be brought into the classroom. As a result, permanent learning can be realized with the possibility of creating a shared living space and the number of sensory organs participating in learning.This current study aims to address in-depth information about the opinions of Religious Culture and Moral Ethics (DKAB) teachers in primary, secondary, and high schools regarding the subject-based classroom application. When the studies in the literature are examined, it is seen that the studies related to the subject-based classroom application have increased since 2010. However, it is clear that this research is directed towards social studies, geography, science, and mathematics courses and is based on the opinions of students, teachers, and administrators at the secondary school level. In the context of DKAB course, there has been no research including the views of teachers, students, or school administrators regarding the application of subject-based classrooms. This study is carried out revealing perspectives of DKAB teachers by examining their opinions on the subject-based classroom application and contribute to the field. The research was conducted with a case study design from the qualitative research methods. The participants consist of 8 DKAB teachers working in Ankara province. A mixed purposive sampling method was used to determine the study group. In the first stage, the teachers implementing the DKAB classrooms application were taken as criteria. In the next step, the study group was determined within the framework of the maximum diversity sampling method by considering the variables such as school level, gender, age, education level, duration of teachers' work. The data were collected through a semi-structured interview form with expert opinion. In the form, there are nine main questions and probe questions, which include questions related to subject-based classrooms application, the contribution of the application to religious education and training, the contribution of teachers to professional and personal development, the effect of teachers' belonging to the school, the effectiveness, and improvement of the application. Permission has been obtained from the Ankara Provincial Directorate of National Education and participants via consent form for the interview. The interviews were recorded in audio, 169.58-minute audio recording transcripts, and 52-page interview data obtained. The qualitative data of this research has been analyzed with both descriptive and content analysis by NVivo 10 program. In order to ensure validity and reliability in the study, credibility, transferability, consistency, and verifiability strategies have been used.When the data of the research were analyzed, the opinions of DKAB teachers about the subject-based classrooms application categorized under four themes; positive and negative opinions/problems about the practice, the contribution of the practice to religious education and teaching and practical suggestions. Under the theme of positive opinions on the application, positive aspects for the teacher, student, parents, and comparison with the classroom system were formed. According to the participants, the practice of DKAB classroom is a “facilitation” element for the teacher because of the factors such as the teacher not moving around the classroom, not carrying material, having freedom to organize the classroom, and material regularity. In this application, since the teacher has a class of his own, the teacher adopts and owns the classroom and the sense of belonging to school increases. This sense of belonging is felt so strongly that there is even a participant who plans to retire if the application is abandoned. The positive aspects of the application for the students are that; a classroom is a motivating tool, the boards and walls can be used, and the student has the opportunity to exhibit their activities. When compared with the classroom system, it was stated that as a result of the branch classroom practice, the school equipment could be better protected, class order and cleaning easier, and the success of the students would be increased.The negative views of the participants on the application were grouped under the categories of students, teachers, and parents. Not having a fixed class of their own, continually relocating and losing time in recess, staying in the classroom door when the classroom is locked, not adopting the classroom and lack of lockers constitute the negative aspects of the application for the students. The overuse of classrooms, less use of teachers' rooms, lack of communication between colleagues are the negative aspects of the application for the teachers. It was stated by (75%) most of the participants that branch classroom application contributed to the continual learning of students in religious education and teaching. To make the application more functional, DKAB teachers have proposed arrangements such as improving physical infrastructure, enriching teaching materials, and arranging school syllabus and keeping classrooms open. As a result, teachers find the application more positive than the classroom system. While it is a motivation tool for primary school students, it causes some problems for secondary and high school students, such as carrying bags, staying at the door, and wasting time. In this sense, the application is recommended to be applied in primary schools that have a sufficient number of classrooms. Also, the system should be applied in secondary and high schools where the number of students is low, or the number of classrooms is sufficiently provided that the problems experienced by the students are eliminated. School administrations and teachers need to take necessary measures to make the application effective and efficient. (shrink)

In this study we investigated sensorimotor processing of painful pressure stimulation on the lower back of patients with chronic lower back pain (CLBP) by using functional near-infrared spectroscopy (fNIRS) to measure changes in cerebral hemodynamics and oxygenation. The main objectives were whether patients with CLBP show different relative changes in oxy- and deoxyhemoglobin ([O2Hb] and [HHb]) in the supplementary motor area (SMA) and primary somatosensory cortex (S1) compared to healthy controls (HC). Twelve patients with CLBP (32 ± 6.1 years; range: (...) 24 – 44 years; 9 women) and twenty HCs (33.5 ± 10.7 years; range 22-61 years; 8 women) participated in the study. Painful and non-painful pressure stimulation was exerted with a thumb grip perpendicularly to the spinous process of the lumbar spine. A force sensor was attached at the spinous process in order control for pressure forces. Tactile stimulation was realized by a one-finger brushing. Hemodynamic changes in the SMA and S1 were measured bilaterally using a multi-channel continuous wave fNIRS imaging system and a multi-distant probe array. Patients with CLBP showed significant stimulus-evoked hemodynamic responses in [O2Hb] only in the right S1, while the healthy controls exhibited significant [O2Hb] changes bilaterally in both, SMA and S1. However, the group comparisons revealed no significant different hemodynamic responses in [O2Hb] and [HHb] in the SMA and S1 after both pressure stimulations. This non-significant result might be driven by the high inter-subject variability of hemodynamic responses that has been observed within the patients group. In conclusion, we could not find different stimulus-evoked hemodynamic responses in patients with CLBP compared to HCs. This indicates that neither S1 nor the SMA show a specificity for CLBP during pressure stimulation on the lower back. However, the results point to a potential subgrouping regarding task-related cortical activity within the CLBP group; a finding worth further research. (shrink)

The vestibular system encodes motion and orientation of the head in space and is essential for negotiating in and interacting with the world. Recently, random waveform electric vestibular stimulation has become an increasingly common means of probing the vestibular system. However, many of the methods used to analyze the behavioral response to this type of stimulation assume a linear relationship between frequencies in the stimulus and its associated response. Here we examine this stimulus-response frequency linearity to determine the (...) validity of this assumption. Forty-five university-aged subjects stood on a force-plate for 4 min while receiving vestibular stimulation. To determine the linearity of the stimulus-response relationship we calculated the cross-frequency power coupling between a 0 and 25 Hz bandwidth limited white noise stimulus and induced postural responses, as measured using the horizontal forces acting at the feet. Ultimately, we found that, on average, the postural response to a random stimulus is linear across stimulation frequencies. This result supports the use of analysis methods that depend on the assumption of stimulus-response frequency linearity, such as coherence and gain, which are commonly used to analyze the body’s response to random waveform electric stimuli. (shrink)

This article builds on my previous article on Dirk H. Th. Vollenhoven (Ive 2015) and provides an overview of the development of the systematic philosophy of Herman Dooyeweerd. This article seeks to provide an overview of the key developments in the thinking of Dooyeweerd, both in the convergences arising from the conversation of the two brothers-in-law and long-term colleagues and in their divergences. Dooyeweerd and Vollenhoven worked within the tradition of Abraham Kuyper, the father of Reformational philosophy. The development of (...) their respective philosophical systematics has tended to be addressed separately. However, I argue that the close cooperation between the two philosophers was critical in the formulation of the philosophy of the cosmonomic Idea. The philosophical conversation between the two persisted, despite critical divergences, largely aired privately. Their respective insights remained a source of mutual stimulus and complementarity foundational for Reformational philosophy. (shrink)

RationaleThere are growing concerns over the occurrence of adverse physiologic events occurring in pilots during operation of United States Air Force and Navy high-performance aircraft. We hypothesize that a heightened inspiratory work of breathing experienced by jet pilots by virtue of the on-board life support system may constitute a “distraction stimulus” consequent to an increased sensation of respiratory muscle effort. As such, the purpose of this study was to determine whether increasing inspiratory muscle effort adversely impacts on attentional performance.MethodsTwelve, (...) healthy participants were recruited for this study. Participants completed six repetitions of a modified Masked Conjunctive Continuous Performance Task protocol while breathing against four different inspiratory threshold loads to assess median reaction times. A computer-controlled threshold loading device was used to set the inspiratory threshold loads. Repeated measures analysis of variances were performed to examine: the efficacy of the threshold loading device to impose significantly higher loading at each loading condition; the effects of loading condition on respiratory muscle effort sensation; and the influence of hypercapnia on MCCPT scores during inspiratory threshold loading. Generalized additive mixed effects models were used to examine the potential non-linear effects of respiratory muscular effort sensation, device loading, and hypercapnia, on MCCPT scores during inspiratory threshold loading.ResultsInspiratory threshold loading significantly augmented inspiratory effort sensation and the inspiratory pressure-time product. Our analyses also revealed that median hit RT was positively associated with inspiratory effort sensation during inspiratory loading trials.ConclusionThe findings of this work suggest that it was not increasing inspiratory muscle effort per se, but rather participant’s subjective perception of inspiratory “load” that impacts negatively on attentional performance; i.e., as the degree of inspiratory effort sensation increased, sotoo did median hit RT. As such, it is reasonable to suggest that minimizing inspiratory effort sensation during high-performance flight operations may prove useful in reducing pilot RTs during complex behavioral tasks. (shrink)