Aquinas’s understanding of bodily resurrection can take two different directions. Either continuity of the soul alone is sufficient to reconstitute the same body as the pre-mortem body at the resurrection, or continuity of the matter of the pre-mortem body is also required. After arguing that Aquinas’s account of personal identity over time requires sameness of soul and sameness of body, I suggest that Aquinas’s two possible views on bodily resurrection are consistent with this account of personal identity and are both (...) plausible views for Aquinas to take. I then defend the possibility of the view that requires material continuity against certain objections which come from within Aquinas’s own philosophies of form, matter, and the elements. But the result is that Aquinas cannot consistently hold that material continuity hinges on the preservation of numerically the same material elements as the pre-mortem body. (shrink)

I november 2020 stod statsminister Mette Frederiksen på en gård i Jylland og kneb en tåre foran den forsamlede presse. Hun havde netop besøgt to generationer af minkfarmere, far og søn, hvis levebrød hun selv lige havde besluttet at slå ned. Var det kynisme eller reelle følelser, der var på spil? Tog statsministeren personligt ansvar for sin egen, svære beslutning, eller var hun en hykler? I denne videnskabeligt funderede debatbog sætter Silas F. Harrebye vores allesammens hykleri under lup. Han (...) skelner mellem forskellige former for hykleri og undersøger, hvad det gør ved demokratiet, at vi ofte er mere optagede af at anklage end at forstå hinanden. Bogen viser, hvorfor vi har brug for flere nuancer i debatten, hvis der skal være plads til politiske visioner og personlig udvikling. Bogen indeholder dybdegående interviews med 8 kendte politikere og meningsdannere som selv har været igennem deciderede shitstorms og anklager om hykleri: Lars Løkke Rasmussen, Pelle Dragsted, Carolina Magdalene Maier, Morten Messerschmidt, Tim Whyte, Rasmus Willig, Anders Gadegaard og Lea Korsgaard. De bliver alle udfordret til at reflektere over både eget og andres hykleri. Derudover præsenterer bogen resultaterne fra en omfattende befolkningsundersøgelse lavet i forbindelse med bogen. Ved hjælp af overraskende teoretiske vinkler og fortolkninger formulerer Silas F. Harrebye et forsvar for hykleriet, som han mener er uundgåeligt og ligefrem kan være politisk produktivt. Som han skriver:?hellere hyklerisk idealist end konsekvent kyniker.? Bogen er skrevet til borgere og fagfolk, der interesserer sig for demokrati, politik og samfund. Den rummer en masse inspiration til at reflektere over de svære valg i livet og blive det, forfatteren kalder?den gode hykler?. Bogen kan oplagt bruges som supplerende litteratur på universiteter og højskoler inden for fx samfundsfag, filosofi og medievidenskab. (shrink)

Narratives, also called stories, can be found in conversations, children’s play interactions, reading material, and television programs. From infancy to adulthood, narrative comprehension processes interpret events and inform our understanding of physical and social environments. These processes have been extensively studied to ascertain the multifaceted nature of narrative comprehension. From this research we know that three overlapping processes (i.e., knowledge integration, goal structure understanding, and causal inference generation) proposed by the constructionist paradigm are necessary for narrative comprehension, narrative comprehension has (...) a predictive relationship with children’s later reading performance, and comprehension processes are generalizable to other contexts. Much of the previous research has emphasized internal and predictive validity; thus, limiting the generalizability of previous findings. We are concerned these limitations may be excluding underrepresented populations from benefits and implications identified by early comprehension processes research. This review identifies gaps in extant literature regarding external validity and argues for increased emphasis on externally valid research. We highlight limited research on narrative comprehension processes in children from low-income and minority populations, and argue for changes in comprehension assessments. Specifically, we argue both on- and off-line assessments should be used across various narrative types (e.g., picture books, televised narratives) with traditionally underserved and underrepresented populations. We propose increasing the generalizability narrative comprehension processes research can inform persistent reading achievement gaps, and have practical implications for how children learn from narratives. (shrink)

This paper examines the task of understanding dialogues in terms of the mental states of the participating agents. We present a motivating example that clarifies the challenges this problem involves and then outline a theory of dialogue interpretation based on abductive inference of these unobserved beliefs and goals, incremental construction of explanations, and reliance on domain-independent knowledge. After this, we describe UMBRA, an implementation of the theory that embodies these assumptions. We report experiments with the system that demonstrate its ability (...) to accurately infer the conversants’ mental states even when some speech acts are unavailable. We conclude by reviewing related research on dialogue and discussing avenues for future study. (shrink)

In den historiographischen Debatten über die verschiedenen Ideologien der ersten Hälfte des 20. Jahrhunderts wird der Begriff „katholischer Faschismus“ gelegentlich verwendet, um eine spezifische Version des Faschismus in den 1920ern, 1930ern und 1940ern Jahren zu bezeichnen. Im vorliegenden Aufsatz wird dieses Konzept in historischer und historiographischer Perspektive analysiert. Dabei geht es v. a. um den religiösen Hintergrund, die verschiedenen begrifflichen Unterscheidungen, die wichtigsten Ereignisse und die ideologischen Zusammenhänge. Der protestantische Faschismus sowie das Konfliktfeld zwischen Katholizismus und faschistischer Ideologie werden auch (...) thematisiert.In the historiographical debates about the different streams of ideology in the first half of the 20th century, the term “Catholic fascism” has been used on occasion to refer to a specific version of fascism and Catholicism in the 1920s, 1930s and 1940s. The following article analyzes this concept in historical and historiographical perspective, drawing attention to the religious background, the various conceptual distinctions, key events and ideological interrelationships. Protestant fascism is also addressed along with the ideological conflict between Catholicism and fascist ideology. Before turning to these themes, however, the critical role of papal theological and cultural analysis will be addressed. (shrink)

Particular social aspects of the nature of science, such as economics of, and entrepreneurship in science, are understudied in science education research. It is not surprising then that the practical applications, such as lesson resources and teaching materials, are scarce. The key aims of this article are to synthesize perspectives from the literature on economics of science, entrepreneurship, NOS, and science education in order to have a better understanding of how science works in society and illustrate how such a synthesis (...) can be incorporated in the practice of science education. The main objectives of this article are to argue for the role and inclusion of EOS and entrepreneurship in NOS and re-define entrepreneurship in the NOS context; explore the issues emerging in the “financial systems” of the Family Resemblance Approach to NOS and propose the inclusion of contemporary aspects of science, such as EOS and entrepreneurship, into NOS; conceptualize NOS, EOS, and entrepreneurship in a conceptual framework to explain how science works in the society; and transform the theoretical knowledge of how science operates in society into practical applications for science teaching and learning. The conceptual framework that we propose illustrates the links between State, Academia, Market and Industry. We suggest practical lesson activities to clarify how the theoretical discussions on the SAMI cycle framework can be useful and relevant for classroom practice. In this article, science refers to physics, chemistry, and biology. However, we also recommend an application of this framework to other sciences to reveal their social-institutional side. (shrink)

Romano Guardini was one of the most important intellectuals of German Catholicism in the twentieth century. He influenced nearly an entire generation of German Catholic theologians and was the leading figure of the German Catholic youth movement as it grew exponentially in the 1920s. Yet there are many open questions about his early intellectual development and his academic contribution to religious, cultural, social and political questions in the Weimar Republic and in National Socialist Germany. This article draws upon Guardini’s publications, (...) the secondary literature on Guardini and on some archival material, seeking to outline his early development and his engagement with the ideological context following World War I and in National Socialist Germany. Here Guardini’s criticisms of the modern age are presented. Besides this many other issues are addressed, such as his criticism of the women’s movement, his understanding of the youth movement, reception of Carl Schmitt, views of race, interpretation of the controversial Volk-concept, contribution to a Jewish journal in 1933, and his basic positions on the issues of obedience, order and authority. While Guardini was viewed critically by some National Socialists in the Third Reich, the administrative correspondences on him in the 1940s actually show that there was an internal debate about him among the National Socialist officials. This involved different figures, including a diplomat who came to Guardini’s defense. The internal disagreements were made more complicated because Guardini’s brothers were apparently members of the Fascist Party in Italy at this time. (shrink)

In den historiographischen Debatten über die verschiedenen Ideologien der ersten Hälfte des 20. Jahrhunderts wird der Begriff „katholischer Faschismus“ gelegentlich verwendet, um eine spezifische Version des Faschismus in den 1920ern, 1930ern und 1940ern Jahren zu bezeichnen. Im vorliegenden Aufsatz wird dieses Konzept in historischer und historiographischer Perspektive analysiert. Dabei geht es v. a. um den religiösen Hintergrund, die verschiedenen begrifflichen Unterscheidungen, die wichtigsten Ereignisse und die ideologischen Zusammenhänge. Der protestantische Faschismus sowie das Konfliktfeld zwischen Katholizismus und faschistischer Ideologie werden auch (...) thematisiert.In the historiographical debates about the different streams of ideology in the first half of the 20th century, the term “Catholic fascism” has been used on occasion to refer to a specific version of fascism and Catholicism in the 1920s, 1930s and 1940s. The following article analyzes this concept in historical and historiographical perspective, drawing attention to the religious background, the various conceptual distinctions, key events and ideological interrelationships. Protestant fascism is also addressed along with the ideological conflict between Catholicism and fascist ideology. Before turning to these themes, however, the critical role of papal theological and cultural analysis will be addressed. (shrink)

In diesem Aufsatz werden die Veröffentlichungen des Jesuiten Erich Przywara und der sehr einflussreichen jesuitischen Zeitschrift Stimmen der Zeit aus den frühen 193oern Jahren und besonders aus dem Jahr 1933 analysiert. In diesem Zusammenhang antworte ich auch meinen Kritikern. Außerdem werden die Hintergründe und Quellen der spezifischen Form des Antisemitismus dargestellt, die in den Stimmen der Zeit vertreten wurde. Deutsche Jesuiten propagierten 1933 durchaus radikale Positionen in der Zeitschrift. In dem katholischen Blatt liest man u. a., dass die Juden dem (...) deutschen Volk mehr Schaden als Nutzen brächten. Es wurde damals auch die nordische Rasse als für Herrschaft besonders geeignet bezeichnet. Im letzten Teil dieses Aufsatzes werden Przywaras spätere Briefe an Carl Schmitt, den gläubigen antisemitischen deutschen Katholiken, analysiert. Sie zeigen, dass Przywara von dessen antidemokratischer politischer Theorie der 1930er Jahre zutiefst beeindruckt war und die Ideen des Kronjuristen des Dritten Reiches sogar noch in der Zeit nach dem Zweiten Weltkrieg verbreiten wollte. (shrink)

The monthly magazine Hochland was probably the most influential Catholic cultural periodical in Germany in the Weimar Period. According to Georg Cardinal von Kopp’s assessment in 1911, it was “unfortunately the most read periodical in all of the educated circles of Germany, Austria and German Switzerland”. Moving beyond the simple rejection of modern culture in Germany, the journal tried to follow a new program of mediatory engagement, although it did continue to hold to traditional positions in many regards. In this (...) article the reception of modern, Enlightenment-affirmative philosophy of religion in the journal is introduced with reference to reviews and essays from the later 1910s to the early 1930s. The journal’s treatment of a few critical subject areas is given close interpretive analysis, including the journal’s treatment of Gertrud Simmel’s Über das Religiöse, individually conceptualized forms of personalist moral theory, and the general shift to phenomenological discourses and the individual in the philosophy of religion. The fundamental rejections of these ideas and these schools of thought in reviews and essays, which are also found in the journal at this time (as in most all German language Catholic cultural journals of the period), are not addressed in this article. The article thus sheds light on an often-forgotten and relatively small minority phenomenon in German Catholic intellectual circles of the Weimar Period, namely the positive embrace of Enlightenment-oriented modern thought. By promoting these ideas at this time, this group made themselves highly vulnerable to disciplinary measures by the Catholic Church. (The journal was put on the Index in 1911.). (shrink)

Romano Guardini was one of the most important intellectuals of German Catholicism in the twentieth century. He influenced nearly an entire generation of German Catholic theologians and was the leading figure of the German Catholic youth movement as it grew exponentially in the 1920s. Yet there are many open questions about his early intellectual development and his academic contribution to religious, cultural, social and political questions in the Weimar Republic and in National Socialist Germany. This article draws upon Guardini’s publications, (...) the secondary literature on Guardini and on some archival material, seeking to outline his early development and his engagement with the ideological context following World War I and in National Socialist Germany. Here Guardini’s criticisms of the modern age are presented. Besides this many other issues are addressed, such as his criticism of the women’s movement, his understanding of the youth movement, reception of Carl Schmitt, views of race, interpretation of the controversial Volk-concept, contribution to a Jewish journal in 1933, and his basic positions on the issues of obedience, order and authority. While Guardini was viewed critically by some National Socialists in the Third Reich, the administrative correspondences on him in the 1940s actually show that there was an internal debate about him among the National Socialist officials. This involved different figures, including a diplomat who came to Guardini’s defense. The internal disagreements were made more complicated because Guardini’s brothers were apparently members of the Fascist Party in Italy at this time. (shrink)

The monthly magazine Hochland was probably the most influential Catholic cultural periodical in Germany in the Weimar Period. According to Georg Cardinal von Kopp’s assessment in 1911, it was “unfortunately the most read periodical in all of the educated circles of Germany, Austria and German Switzerland”. Moving beyond the simple rejection of modern culture in Germany, the journal tried to follow a new program of mediatory engagement, although it did continue to hold to traditional positions in many regards. In this (...) article the reception of modern, Enlightenment-affirmative philosophy of religion in the journal is introduced with reference to reviews and essays from the later 1910s to the early 1930s. The journal’s treatment of a few critical subject areas is given close interpretive analysis, including the journal’s treatment of Gertrud Simmel’s Über das Religiöse, individually conceptualized forms of personalist moral theory, and the general shift to phenomenological discourses and the individual in the philosophy of religion. The fundamental rejections of these ideas and these schools of thought in reviews and essays, which are also found in the journal at this time (as in most all German language Catholic cultural journals of the period), are not addressed in this article. The article thus sheds light on an often-forgotten and relatively small minority phenomenon in German Catholic intellectual circles of the Weimar Period, namely the positive embrace of Enlightenment-oriented modern thought. By promoting these ideas at this time, this group made themselves highly vulnerable to disciplinary measures by the Catholic Church. (The journal was put on the Index in 1911.). (shrink)

The laws and principles which predict how perceptual qualities can be extracted from the most elementary visual signals were discovered by the Gestalt psychologists(e.g., Wertheimer,1923; Metzger,1930, translated and re-editedbySpillmann in 2009 and2012, respectively). Their seminal work has inspired visual science ever since, andhas led to exciting discoveries which have confirmed the Gestalt idea that the human brain would have an astonishing capacity for selecting and combining critical visual signals to generate output representations for decision making and action. This capacity of (...) selection and integration enables the perception of form and space, and the correct estimation of relative positions, trajectories, and distances of objects represented in planar images. This paper addresses problems of perceptual organization with critical implications for visual interfaces, and the design of surgical simulator platforms in particular. (shrink)

Following the pioneering studies of the receptive field (RF), the concept gained further significance for visual perception by the discovery of input effects from beyond the classical RF. These studies demonstrated that neuronal responses could be modulated by stimuli outside their RFs, consistent with the perception of induced brightness, color, orientation, and motion. Lesion scotomata are similarly modulated perceptually from the surround by RFs that have migrated from the interior to the outer edge of the scotoma and in this way (...) provide filling-in of the void. Large RFs are advantageous to this task. In higher visual areas, such as the middle temporal and inferotemporal lobe, RFs increase in size and lose most of their retinotopic organization while encoding increasingly complex features. Whereas lowerlevel RFs mediate perceptual filling-in, contour integration, and figure–ground segregation, RFs at higher levels serve the perception of grouping by common fate, biological motion, and other biologically relevant stimuli, such as faces. Studies in alert monkeys while freely viewing natural scenes showed that classical and nonclassical RFs cooperate in forming representations of the visual world. Today, our understanding of the mechanisms underlying the RF is undergoing a quantum leap. What had started out as a hierarchical feedforward concept for simple stimuli, such as spots, lines, and bars, now refers to mechanisms involving ascending, descending, and lateral signal flow. By extension of the bottom-up paradigm, RFs are nowadays understood as adaptive processors, enabling the predictive coding of complex scenes. Top-down effects guiding attention and tuned to task-relevant information complement the bottom-up analysis. (shrink)

By reviewing most of the neurobiology of consciousness, this article highlights some major reasons why a successful emulation of the dynamics of human consciousness by artificial intelligence is unlikely. The analysis provided leads to conclude that human consciousness is epigenetically determined and experience and context-dependent at the individual level. It is subject to changes in time that are essentially unpredictable. If cracking the code to human consciousness were possible, the result would most likely have to consist of a temporal pattern (...) code simulating long-distance signal reverberation and de-correlation of all spatial signal contents from temporal signals. In the light of the massive evidence for complex interactions between implicit (non-conscious) and explicit (conscious) contents of representation, the code would have to be capable of making implicit (non-conscious) processes explicit. It would have to be capable of a progressively less and less arbitrary selection of temporal activity patterns in a continuously developing neural network structure identical to that of the human brain, from the synaptic level to that of higher cognitive functions. The code’s activation thresholds would depend on specific temporal signal coincidence probabilities, vary considerably with time and across individual experience data, and would therefore require dynamically adaptive computations capable of emulating the properties of individual human experience. No known machine or neural network learning approach has such potential. (shrink)

Analysis of grip force signals tailored to hand and finger movement evolution and changes in grip force control during task execution provide unprecedented functional insight into somatosensory cognition. Somatosensory cognition is a basis of our ability to manipulate, move, and transform objects of the physical world around us, to recognize them on the basis of touch alone, and to grasp them with the right amount of force for lifting and manipulating them. Recent technology has permitted the wireless monitoring of grip (...) force signals recorded from biosensors in the palm of the human hand to track and trace human grip forces deployed in cognitive tasks executed under conditions of variable sensory (visual, auditory) input. Non-invasive multi-finger grip force sensor technology can be exploited to explore functional interactions between somatosensory brain mechanisms and motor control, in particular during learning a cognitive task where the planning and strategic execution of hand movements is essential. Sensorial and cognitive processes underlying manual skills and/or hand-specific (dominant versus non-dominant hand) behaviors can be studied in a variety of contexts by probing selected measurement loci in the fingers and palm of the human hand. Thousands of sensor data recorded from multiple spatial locations can be approached statistically to breathe functional sense into the forces measured under specific task constraints. Grip force patterns in individual performance profiling may reveal the evolution of grip force control as a direct result of cognitive changes during task learning. Grip forces can be functionally mapped to from-global-to-local coding principles in brain networks governing somatosensory processes for motor control in cognitive tasks leading to a specific task expertise or skill. Under the light of a comprehensive overview of recent discoveries into the functional significance of human grip force variations, perspectives for future studies in cognition, in particular the cognitive control of strategic and task relevant hand movements in complex real-world precision task, are pointed out. (shrink)

Global society issues are putting increasing pressure on both small and large organizations to communicate ethically at all levels. Achieving this requires social skills beyond the choice of language or vocabulary and relies above all on individual social responsibility. Arguments from social contract philosophy and speech act theory lead to consider a communication contract that identifies the necessary individual skills for ethical communication on the basis of a limited number of explicit clauses. These latter are pragmatically binding for all partners (...) involved and help to ensure that the ground rules of cooperative communication are observed within a group or an organization. Beyond promoting ethical communication, the communication contract clarifies how individual discursive behaviour can be constructively and ethically monitored by group leaders in business meetings. A case study which shows what may happen when ground clauses of ethical communication are violated is presented. The conclusions of the study highlights why attempting to respect the communication contract is in the best interest of all partners at all levels within any group or organization. (shrink)

Protests that target firms’ socially irresponsible behavior are increasingly organized via digital media. This study uses two methods to investigate the effects that online protests and mitigating firm responses have on shareholders’ and consumers’ evaluation. The first method is a financial analysis that includes an event study which measures the effect of online protests on the target firm’s share price, as well as an investigation of the boundary effects of protest characteristics. The second method is an online experiment that assesses (...) the effect of an online protest campaign on consumers’ perception and purchase intention, as well as any mitigating effects that a firm’s response may have. Contrary to recent studies suggesting that participation in online protests is only token support without any substantive effects, our results show that online protests do hurt. Firms can expect to suffer financial, reputational, and sales damage when an online protest campaign mobilizes consumers successfully. We also show that online protests are more likely to take firms by surprise than offline protests. Firms can exacerbate or reduce the damage by their response. We find that although firms may repair the damage to consumers’ purchase intentions, the negative effects on a brand’s image are harder to rectify. The results have valuable implications for protest organizers and managers faced with the task of responding. (shrink)

Two universal functional principles of Grossberg’s Adaptive Resonance Theory decipher the brain code of all biological learning and adaptive intelligence. Low-level representations of multisensory stimuli in their immediate environmental context are formed on the basis of bottom-up activation and under the control of top-down matching rules that integrate high-level, long-term traces of contextual configuration. These universal coding principles lead to the establishment of lasting brain signatures of perceptual experience in all living species, from aplysiae to primates. They are re-visited in (...) this concept paper on the basis of examples drawn from the original code and from some of the most recent related empirical findings on contextual modulation in the brain, highlighting the potential of Grossberg’s pioneering insights and groundbreaking theoretical work for intelligent solutions in the domain of developmental and cognitive robotics. (shrink)

Protests that target firms’ socially irresponsible behavior are increasingly organized via digital media. This study uses two methods to investigate the effects that online protests and mitigating firm responses have on shareholders’ and consumers’ evaluation. The first method is a financial analysis that includes an event study which measures the effect of online protests on the target firm’s share price, as well as an investigation of the boundary effects of protest characteristics. The second method is an online experiment that assesses (...) the effect of an online protest campaign on consumers’ perception and purchase intention, as well as any mitigating effects that a firm’s response may have. Contrary to recent studies suggesting that participation in online protests is only token support without any substantive effects, our results show that online protests do hurt. Firms can expect to suffer financial, reputational, and sales damage when an online protest campaign mobilizes consumers successfully. We also show that online protests are more likely to take firms by surprise than offline protests. Firms can exacerbate or reduce the damage by their response. We find that although firms may repair the damage to consumers’ purchase intentions, the negative effects on a brand’s image are harder to rectify. The results have valuable implications for protest organizers and managers faced with the task of responding. (shrink)

This study focuses on how moral aspects of purpose shape collaborative processes. It does so by analyzing the unfolding of 21 relationships between four nonprofits and their funders using a framework based on French pragmatist sociology to help uncover the deeply held, ideological and moral beliefs that underscore assumptions about what the overarching purpose of a collaborative effort is or should be. This study contributes to the literature on single and cross-sectoral collaboration by showing that the way partners handle and (...) reconcile differences about purpose is related to the forms of agreement likely to be achieved. It also suggests that certain forms of agreement are inherently more enduring than others. Taken as a whole, this study provides some plausible explanations as to why so many collaborations fail despite their seeming benefits for all the parties involved. (shrink)

In the field theories in physics, any particular region of the presumed space-time continuum and all interactions between elementary objects therein can be objectively measured and/or accounted for mathematically. Since this does not apply to any of thefield theories, or any other neural theory, of consciousness, their explanatory power is limited. As discussed in detail herein, the matter is complicated further by the facts than any scientifically operational definition of consciousness is inevitably partial, and that the phenomenon has no spatial (...) dimensionality. Under the light of insights from research on meditation and expanded consciousness, chronic pain syndrome, healthy aging, and eudaimonic well being, we may conceive consciousness as a source of potential energy that has no clearly defined spatial dimensionality, but can produce significant changes in others and in the world, observable in terms of changes in time. It is argued that consciousness may have evolved to enable the human species to generate such changes in order to cope with unprecedented and/or unpredictable adversity. Such coping could, ultimately, include the conscious planning of our own extinction when survival on the planet is no longer an acceptable option. (shrink)

We show that true colors as defined by Chevreul (1839) produce unsuspected simultaneous brightness induction effects on their immediate grey backgrounds when these are placed on a darker (black) general background surrounding two spatially separated configurations. Assimilation and apparent contrast may occur in one and the same stimulus display. We examined the possible link between these effects and the perceived depth of the color patterns which induce them as a function of their luminance contrast. Patterns of square-shaped inducers of a (...) single color (red, green, blue, yellow, or grey) were placed on background fields of a lighter and a darker grey, presented on a darker screen. Inducers were always darker on one side of the display and brighter on the other in a given trial. The intensity of the grey backgrounds varied between trials only. This permitted generating four inducer luminance contrasts, presented in random order, for each color. Background fields were either spatially separated or consisted of a single grey field on the black screen. Experiments were run under three environmental conditions: dark-adaptation, daylight, and rod-saturation after exposure to bright light. In a first task, we measured probabilities of contrast, assimilation, and no effect in a three-alternative forced-choice procedure (background appears brighter on the ‘left’, on the ‘right’ or the ‘same’). Visual adaptation and inducer contrast had no significant influence on the induction effects produced by colored inducers. Achromatic inducers produced significantly stronger contrast effects after dark-adaptation, and significantly stronger assimilation in daylight conditions. Grouping two backgrounds into a single one was found to significantly decrease probabilities of apparent contrast. Under the same conditions, we measured probabilities of the inducers to be perceived as nearer to the observer inducers. These, as predicted by Chevreul’s law of contrast, were determined by the luminance contrast of the inducers only, with significantly higher probabilities of brighter inducers to be seen as nearer, and a marked asymmetry between effects produced by inducers of opposite sign. Implications of these findings for theories which attempt to link simultaneous induction effects to the relative depth of object surfaces in the visual field are discussed. (shrink)

Poorly saturated colors are closer to a pure grey than strongly saturated ones and, therefore, appear less “colorful”. Color saturation is effectively manipulated in the visual arts for balancing conflicting sensations and moods and for inducing the perception of relative distance in the pictorial plane. While perceptual science has proven quite clearly that the luminance contrast of any hue acts as a self-sufficient cue to relative depth in visual images, the role of color saturation in such figure-ground organization has remained (...) unclear. We presented configurations of colored inducers on grey ‘test’ backgrounds to human observers. Luminance and saturation of the inducers was uniform on each trial, but varied across trials. We ran two separate experimental tasks. In the relative background brightness task, perceptual judgments indicated whether the apparent brightness of the grey test background contrasted with, assimilated to, or appeared equal (no effect) to that of a comparison background with the same luminance contrast. Contrast polarity and its interaction with color saturation affected response proportions for contrast, assimilation and no effect. In the figure-ground task, perceptual judgments indicated whether the inducers appeared to lie in front of, behind, or in the same depth with the background. Strongly saturated inducers produced significantly larger proportions of foreground effects indicating that these inducers stand out as figure against the background. Weakly saturated inducers produced significantly larger proportions of background effects, indicating that these inducers are perceived as lying behind the backgrounds. We infer that color saturation modulates figure-ground organization, both directly by determining relative inducer depth, and indirectly, and in interaction with contrast polarity, by affecting apparent background brightness. The results point towards a hitherto undocumented functional role of color saturation in the genesis of form, and in particular figure-ground percepts in the absence of chromatostereopsis. (shrink)

The principle of self-organization has acquired a fundamental significance in the newly emerging field of computational philosophy. Self-organizing systems have been described in various domains in science and philosophy including physics, neuroscience, biology and medicine, ecology, and sociology. While system architecture and their general purpose may depend on domain-specific concepts and definitions, there are (at least) seven key properties of self-organization clearly identified in brain systems: 1) modular connectivity, 2) unsupervised learning, 3) adaptive ability, 4) functional resiliency, 5) functional plasticity, (...) 6) from-local-to-global functional organization, and 7) dynamic system growth. These are defined here in the light of insight from neurobiology, cognitive neuroscience and Adaptive Resonance Theory (ART), and physics to show that self-organization achieves stability and functional plasticity while minimizing structural system complexity. A specific example informed by empirical research is discussed to illustrate how modularity, adaptive learning, and dynamic network growth enable stable yet plastic somatosensory representation for human grip force control. Implications for the design of “strong” artificial intelligence in robotics are brought forward. (shrink)

This selective review explores biologically inspired learning as a model for intelligent robot control and sensing technology on the basis of specific examples. Hebbian synaptic learning is discussed as a functionally relevant model for machine learning and intelligence, as explained on the basis of examples from the highly plastic biological neural networks of invertebrates and vertebrates. Its potential for adaptive learning and control without supervision, the generation of functional complexity, and control architectures based on self-organization is brought forward. Learning without (...) prior knowledge based on excitatory and inhibitory neural mechanisms accounts for the process through which survival-relevant or task-relevant representations are either reinforced or suppressed. The basic mechanisms of unsupervised biological learning drive synaptic plasticity and adaptation for behavioral success in living brains with different levels of complexity. The insights collected here point toward the Hebbian model as a choice solution for “intelligent” robotics and sensor systems. Keywords: Hebbian learning; synaptic plasticity; neural networks; self-organization; brain; reinforcement; sensory processing; robot control . (shrink)

Much has recently been written on the subject of “belief,” but since the mental attitude indicated by this term is so pervasive and important it may be useful again to reflect upon its nature and significance.

Although symmetry has been discussed in terms of a major law of perceptual organization since the early conceptual efforts of the Gestalt school (Wertheimer, Metzger, Koffka and others), the first quantitative measurements testing for effects of symmetry on processes of Gestalt formation have seen the day only recently. In this study, a psychophysical rating study and a “foreground”-“background” choice response time experiment were run with human observers to test for effects of bilateral symmetry on the perceived strength of figure-ground in (...) triangular Kanizsa configurations. Displays with and without bilateral symmetry, identical physically-specified-to-total contour ratio, and constant local contrast intensity within and across conditions, but variable local contrast polarity and variable orientation in the plane, were presented in a random order to human observers. Configurations with bilateral symmetry produced significantly stronger figure-ground percepts reflected by greater subjective magnitudes and consistently higher percentages of “foreground” judgments accompanied by significantly shorter response times. These effects of symmetry depend neither on the orientation of the axis of symmetry, nor on the contrast polarity of the physical inducers. It is concluded that bilateral symmetry, irrespective of orientation, significantly contributes to the, largely sign-invariant, visual mechanisms of figure-ground segregation that determine the salience of figure-ground in perceptually ambiguous configurations. (shrink)

We initially describe a feature-rich discriminative Conditional Random Field (CRF) model for Information Extraction in the workshop announcements domain, which offers good baseline performance in the PASCAL shared task. We then propose a method for leveraging domain knowledge in Information Extraction tasks, scoring candidate document labellings as one-value-per-field templates according to domain feasibility after generating sample labellings from a trained sequence classifier. Our relational models evaluate these templates according to our intuitions about agreement in the domain: workshop acronyms should resemble (...) their names, workshop dates occur after paper submission dates. These methods see a 5% f-score improvement in fields retrieved when sampling labellings from a Maximum-Entropy Markov Model, however we do not observe improvement over a CRF model. We discuss reasons for this, including the problem of recovering all field instances from a best template, and propose future work in adapting such a model to the CRF, a better standalone system. (shrink)

While some are currently debating whether time may or may not be an illusion, others keep devoting their time to the science of consciousness. Time as such may be seen as a physical or a subjective variable, and the limitations in our capacity of perceiving and analyzing temporal order and change in physical events definitely constrain our understanding of consciousness which, in return, constrains our conceptual under-standing of time. Temporal codes generated in the brain have been considered as the key (...) to insight into neural function and, ultimately, as potential neural substrates of consciousness itself. On the basis of cur-rent evidence and opinion from neuroscience and philosophy, we consider the interrelation between con-sciousness and time in the light of Hegel and Heidegger’s concepts of Sein (Being) and Zeit (Time). We suggest that consciousness can be defined in terms of a succession of psychological moments where we realize that we exist in, and are part of, a present moment in time. This definition places all other percep-tual or sensorial processes which may characterize phenomenal experience at a different level of analysis and centers the debate around consciousness on the fundamental identity link between awareness of the Ich (I) and awareness of what Heidegger termed Ursprüngliche Zeit (original time). We argue that human consciousness has evolved from the ability to be aware of, to remember, and to predict temporal order and change in nature, and that the limits of this capacity are determined by limits in the functional plasticity of resonant brain mechanisms. Although the conscious state of the Self is the ultimate expression of this evolution, it is devoid of any adaptive function as such. (shrink)

European Journal of Philosophy, EarlyView.

Can we identify potential long-term consequences of digitalisation on public health? Environmental studies, metabolic research, and state of the art research in neurobiology point towards the reduced amount of natural day and sunlight exposure of the developing child, as a consequence of increasingly long hours spent indoors online, as the single unifying source of a whole set of health risks identified worldwide, as is made clear in this review of currently available literature. Over exposure to digital environments, from abuse to (...) addiction, now concerns even the youngest (ages 0 to 2) and triggers, as argued on the basis of clear examples herein, a chain of interdependent negative and potentially long-term metabolic changes. This leads to a deregulation of the serotonin and dopamine neurotransmitter pathways in the developing brain, currently associated with online activity abuse and/or internet addiction, and akin to that found in severe substance abuse syndromes. A general functional working model is proposed under the light of evidence brought to the forefront in this review. (shrink)

Two universal functional principles of Grossberg’s Adaptive Resonance Theory [19] decipher the brain code of all biological learning and adaptive intelligence. Low-level representations of multisensory stimuli in their immediate environmental context are formed on the basis of bottom-up activation and under the control of top-down matching rules that integrate high-level long-term traces of contextual configuration. These universal coding principles lead to the establishment of lasting brain signatures of perceptual experience in all living species, from aplysiae to primates. They are re-visited (...) in this concept paper here on the basis of examples drawn from the original code and from some of the most recent related empirical findings on contextual modulation in the brain, highlighting the potential of Grossberg’s pioneering insights and groundbreaking theoretical work for intelligent solutions in the domain of developmental and cognitive robotics. (shrink)

The laws which predict how the perceptual quality of figure-ground can be extracted from the most elementary visual signals were discovered by the Gestaltists, and form an essential part of their movement (see especially Metzger, 1930, and Wertheimer, 1923 translated and re-edited by Lothar Spillmann, 2009 and 2012, respectively). Distinguishing figure from ground is a prerequisite for perception of both form and space (the relative positions, trajectories, and distances of objects in the visual field. The human brain has an astonishing (...) capacity for selecting and combining a few critical visual signals to accurately represent both form and space. (shrink)