Introduction: Placebo and nocebo effects are positive and negative health outcomes that can be elicited by the psychosocial context. They can be mediated by expectations, and may emerge in somatic symptoms even when people are aware of these effects. Interindividual differences could impact placebo and nocebo responding, but findings are inconsistent.Methods: The current work examined expectation as a mediator of the association between verbal placebo and nocebo suggestions and histamine-induced itch across three experimental studies. Moreover, we examined whether (...) interindividual differences, body ignorance) modulated: the direct association between VSs and itch, and the indirect, expectation-mediated association between VSs and itch. Positive VSs were compared to neutral instructions or negative VSs in an open-label or closed-label context using PROCESS. First, mediation of VSs effects on itch by expectations was tested. Next, moderation by individual traits was explored using conditional process analyses.Results: The effects of VSs on itch were significantly mediated by expectation in Study 1 and in the open-label contexts of Studies 2 and 3. Ignorance of bodily signals marginally moderated the direct effects of VSs on itch when closed-label suggestions were given: at low levels of body ignorance, effects of positive and negative VSs were stronger. Moreover, moderated mediation was observed in the open-label groups of Studies 2 and 3: The expectation-mediated effects of VSs on itch were stronger when BAS drive was lower.Conclusion: Overall, the effects of VSs on itch were mediated by expectations in the open-label, but not the closed-label context. Moreover, the current work suggests that placebo and nocebo effects may be moderated by ignorance of bodily signals and the BAS. There was limited evidence that other interindividual differences modulated placebo and nocebo responding in itch. (shrink)

With respect to human color categories, Steels & Belpaeme's (S&B's) simulations over-emphasize the possible influence of language. In humans, color processing is the result of a long evolutionary process in which categories developed without language. Common principles of color processing lead to similar color categories, but interindividual variation in color categories exists. Even color-deficiencies, causing large differences in color categories, remain inconspicuous in everyday life, thereby contradicting the hypothesis that language could play a role in color category formation.

Animal personality refers to the consistency of variation in behavior among individuals which may be the driving force behind variations in complex behaviors as well. Individual personality could predict how well an organism would perform in behavior and cognition related tasks, as well as survive and thrive in its environment. Therefore, we would expect inter-individual variations in many behaviors, which would persist even if habituation to the experimental setup occurs, which generally results in convergence of behavior. Our study used wild-caught (...) zebrafish from three natural habitats with differing ecological regimes, to understand how consistency and repeatability in specific traits such as boldness, exploration, and spatial ability varies across and within populations even when habituation causes change in behavior. We found that the extent of individual variation differs between populations, with dynamic habitats showing similar repeatability. This indicates that habitat conditions are important drivers of individual variation in addition to other factors, such as sex or size of individuals within populations. Although we found that sex and size played an important role within some populations for some behaviors, in others, the variation was likely caused by other factors, for which we have not accounted. This study underlines the importance of studying inter-individual differences as the phenomenon that underpins multiple behavioral traits and explains the possible role of environmental and inherent factors that drive these differences. (shrink)

Event-related potentials to hierarchical stimuli have been compared for global/local target trials, but the pattern of results across studies is mixed with respect to understanding how ERPs differ with local and global bias. There are reliable interindividual differences in attentional breadth biases. This study addresses two questions. Can these interindividual differences in attentional breadth be predicted by interindividual ERP differences to hierarchical stimuli? Can attentional breadth changes over time within participants be predicted by ERPs (...) changes over time when viewing hierarchical stimuli? Here, we estimated attentional breadth and isolated ERPs in response to Navon letter stimuli presented at two time points. We found that interindividual differences in ERPs at Time 1 did not predict attentional breadth differences across individuals at Time 1. However, individual differences in changes to P1, N1, and P3 ERPs to hierarchical stimuli from Time 1 to Time 2 were associated with individual differences in changes in attentional breadth from Time 1 to Time 2. These results suggest that attentional breadth changes within individuals over time are reflected in changes in ERP responses to hierarchical stimuli such that smaller N1s and larger P3s accompany a shift to processing the newly prioritized level, suggesting that the preferred level required less perceptual processing and elicited more attention. (shrink)

The present study examined gender differences in the distribution of creative abilities through the lens of the greater male variability hypothesis, which postulated that men showed greater interindividual variability than women in both physical and psychological attributes. Two hundred and six undergraduate students in Hong Kong completed two creativity measures that evaluated different aspects of creativity, including: a divergent thinking test that aimed to assess idea generation and a creative problem-solving test that aimed to assess restructuring ability. The (...) present findings extended the research of greater male variability in creativity by showing that men generally exhibited greater variance than women in the overall distribution of the creativity scores in both divergent thinking and creative problem solving, despite trivial gender differences in mean scores. The findings further enriched the discourse of the greater male variability hypothesis by showing interesting domain-specific gendered patterns: greater male variability was more likely to occur in figural forms of creativity, with larger effect sizes, when compared to the variability in verbal forms of creativity; and mixed gendered patterns were found in the upper tails of the creativity score distribution with respect to the verbal domain but not the figural one, despite greater male representation being consistently observed in the lower tail of the distribution. Possible underlying mechanisms and implications were discussed. (shrink)

How individuals reason deductively has concerned researchers for many years. Yet, it is still unclear whether, and if so how, participants’ reasoning performance changes over time. In two test sessions one week apart, we examined how the syllogistic reasoning performance of 100 participants changed within and between sessions. Participants’ reasoning performance increased during the first session. A week later, they started off at the same level of reasoning performance but did not further improve. The reported performance gains were only found (...) for logically valid, but not for invalid syllogisms indicating a bias against responding that ‘no valid conclusion’ follows from the premises. Importantly, we demonstrate that participants substantially varied in the strength of the temporal performance changes and explored how individual characteristics, such as participants’ personality and cognitive ability, relate to these interindividual differences. Together, our findings contradict common assumptions that reasoning performance only reflects a stable inherent ability. (shrink)

Appraisal theory assumes that the individual variability of emotional reactions to the same situation is due to individual differences in appraisal. However, the question of how interindividual differences in appraisal come about has been rarely formally addressed. We focus on one of the central dimensions of appraisal—problem-focused coping potential—and attempt to explain individual differences in appraisals along this dimension using self-efficacy theory. We integrate outcome expectancies, self-efficacy expectations, and problem-focused coping potential into a single framework and (...) outline their personality antecedents. Using generalized self-efficacy beliefs as an example, we then discuss the mechanisms underlying the effects of personality dispositions on appraisal and the conditions that moderate their influence. We conclude with the implications for theory, research, and practice. (shrink)

Recently, reliable interindividual differences were found for the way how individuals process multiple tasks and how they organize their responses. Previous studies have shown mixed results with respect to the flexibility of these preferences. On the one hand, individuals tend to adjust their preferred task processing mode to varying degrees of risk of crosstalk between tasks. On the other, response strategies were observed to be highly stable under varying between-resource competition. In the present study, we investigated whether the (...) stability of response strategies also persists with increased risk of crosstalk or whether individuals adjust their choice of response strategy, similar to what has been found at the level of task processing modes. Besides, related differences in multitasking efficiency were assessed. For this purpose, 53 participants performed the Free Concurrent Dual-Tasking paradigm, which allows them to control their task scheduling and response organization. The participants completed the FCDT paradigm under two conditions including task pairs characterized by either low or high levels of risk of crosstalk. The free choice of task scheduling resulted in the previously found distinct response patterns, best described as blocking, switching or response grouping. Remarkably, we did not find any notable adjustments of strategies of response organization to the extent of crosstalk. However, we observed suspected performance decrements of a switching strategy in the condition of high risk of crosstalk. The results suggest that individual strategies of response organization are stable habits. Further, they illustrate disadvantages of switching vs. blocking strategies of response organization in case of high task similarity. (shrink)

Sociologists increasingly draw on dual-process models of cognition to account for the ways context, cognition, and action interrelate. Drawing from 40 interviews with improvisers and observations from improvisational theater, I find that dual-process model scholarship is limited in three respects: It does not consider how cognition operates in situations where order and disruption are concurrent, it fails to realize there is interindividual variation in cognitive processing, and it underestimates the creativity emerging through automatic processes. Interactions in improv contain elements (...) of both order and disruption, and they place demands on automatic and deliberate cognition simultaneously. Improvisers respond to these competing demands through either automatic or deliberate thinking dispositions, which are engendered through explicit instruction, practical experience, and artistic commitments. These dispositions, in turn, shape creative decision-making, predicting interindividual differences in how improvisers respond to contingencies on stage. I conclude by discussing the implications for culture, cognition, and action. (shrink)

We demonstrate the relationships between occupational demands in German vocational education and training (VET) teacher training, stress symptoms, and different behavioral resilience competencies. Taking into account interindividual differences in resilience competencies, we use a typological approach to identify different types of (trainee) teachers classified by their degrees and configurations of resilience competencies. Our empirical analysis is based on questionnaire data from 131 German vocational trainees and qualified teachers. The results reveal, among other things, that all three resilience competencies—resistance, (...) flexibility, and dynamism—are significantly negatively correlated with the demands of working conditions and workload. Via a latent class analysis, we were able to identify three groups of (trainee) teachers who differed in their resilience competencies to adapt appropriately to different situations and their requirements (“behavioral flexibility”), to recover rapidly from setbacks and to defy the expectations of others (“behavioral resistance”), and to initiate changes as soon as they are necessary or desirable (“behavioral dynamics”). More resilient (trainee) teachers show, among other things, lower values for anxiety as an emotional stress symptom and higher values for job engagement. The findings are discussed with regard to implications for VET teacher training and we stress the need for equilibration on a systemic perspective. (shrink)

Empirical studies largely support the continuity hypothesis of dreaming. Despite of previous research efforts, the exact formulation of the continuity hypothesis remains vague. The present paper focuses on two aspects: the differential incorporation rate of different waking-life activities and the magnitude of which interindividual differences in waking-life activities are reflected in corresponding differences in dream content. Using a correlational design, a positive, non-zero correlation coefficient will support the continuity hypothesis. Although many researchers stress the importance of emotional (...) involvement on the incorporation rate of waking-life experiences into dreams, Hartmann formulated the hypothesis that highly focused cognitive processes such as reading, writing, etc. are rarely found in dreams due to the cholinergic activation of the brain during dreaming. The present findings based on dream diaries and the exact measurement of waking activities replicated two recent questionnaire studies. These findings indicate that it will be necessary to specify the continuity hypothesis more fully and include factors which modulate the incorporation rate of waking-life experiences into dreams. Whether the cholinergic state of the brain during REM sleep or other alterations of brain physiology are the underlying factors of the rare occurrence of highly focused cognitive processes in dreaming remains an open question. Although continuity between waking life and dreaming has been demonstrated, i.e., interindividual differences in the amount of time spent with specific waking-life activities are reflected in dream content, methodological issues have limited the capacity for detecting substantial relationships in all areas. Nevertheless, it might be concluded that the continuity hypothesis in its present general form is not valid and should be elaborated and tested in a more specific way. (shrink)

The ability to learn sequential contingencies of actions for predicting future outcomes is indispensable for flexible behavior in many daily decision-making contexts. It remains open whether such ability may be enhanced by transcranial direct current stimulation. The present study combined tDCS with functional near-infrared spectroscopy to investigate potential tDCS-induced effects on sequential decision-making and the neural mechanisms underlying such modulations. Offline tDCS and sham stimulation were applied over the left and right dorsolateral prefrontal cortex in young male adults in a (...) double-blind between-subject design using a three-state Markov decision task. The results showed an enhanced dlPFC hemodynamic response during the acquisition of sequential state transitions that is consistent with the findings from a previous functional magnetic resonance imaging study; a tDCS-induced increase of the hemodynamic response in the dlPFC, but without accompanying performance-enhancing effects at the behavioral level; and a greater tDCS-induced upregulation of hemodynamic responses in the delayed reward condition that seems to be associated with faster decision speed. Taken together, these findings provide empirical evidence for fNIRS as a suitable method for investigating hemodynamic correlates of sequential decision-making as well as functional brain correlates underlying tDCS-induced modulation. Future research with larger sample sizes for carrying out subgroup analysis is necessary in order to decipher interindividual differences in tDCS-induced effects on sequential decision-making process at the behavioral and brain levels. (shrink)

Prior research has identified age 9–11 as a critical period for the development of the control-of-variables strategy (CVS). We examine the stability of interindividual differences in children's CVS skills with regard to their precursor skills during this critical developmental period. To this end, we relate two precursor skills of CVS at age 9 to four skills constituting fully developed CVS more than 2 years later, controlling for children's more general cognitive development. Note thatN= 170 second- to fourth-graders worked (...) on multiple choice-assessments of their understanding of indeterminacy of evidence and of confounding. We find relations between these two precursor skills and children's CVS skills 2 years later at age 11 inplanning, identifying, andinterpretingcontrolled experiments, and in recognizing the inconclusiveness of confounded comparisons (understanding). In accordance with the perspective that both indeterminacy and confounding constitute critical, related yet distinct elements of CVS, both precursor skills contribute to the prediction of later CVS. Together, the two precursor skills can explain 39% of students' later CVS mastery. Overall, the understanding of indeterminacy is a stronger predictor of fully developed CVS than that of confounding. The understanding of confounding, however, is a better predictor of the more difficult CVS sub-skills of understanding the inconclusiveness of confounded comparisons, and of planning a correctly controlled experiment. Importantly, both precursor skills maintain interactive predictive strength when controlling for children's general cognitive abilities and reading comprehension, showing that the developmental dynamics of CVS and its precursor skills cannot be fully ascribed to general cognitive development. We discuss implications of these findings for theories about the development of CVS and broader scientific reasoning. (shrink)

We propose a revised set of moral dilemmas for studies on moral judgment. We selected a total of 46 moral dilemmas available in the literature and fine-tuned them in terms of four conceptual factors (Personal Force, Benefit Recipient, Evitability and Intention) and methodological aspects of the dilemma formulation (word count, expression style, question formats) that have been shown to influence moral judgment. Second, we obtained normative codings of arousal and valence for each dilemma showing that emotional arousal in response to (...) moral dilemmas depends crucially on the factors Personal Force, Benefit Recipient, and Intentionality. Third, we validated the dilemma set confirming that people's moral judgment is sensitive to all four conceptual factors, and to their interactions. Results are discussed in the context of this field of research, outlining also the relevance of our RT effects for the Dual Process account of moral judgment. Finally, we suggest tentative theoretical avenues for future testing, particularly stressing the importance of the factor Intentionality in moral judgment. Additionally, due to the importance of cross-cultural studies in the quest for universals in human moral cognition, we provide the new set dilemmas in six languages (English, French, German, Spanish, Catalan and Danish). The norming values provided here refer to the Spanish dilemma set. (shrink)

This study, based on the self-determination theory, investigates the link between university students' social peer and teacher integration and intrinsic motivation development. Both integration contexts are expected to contribute to the student's development, either additive or compensatory. The analyses rely on a nationally representative sample of 7,619 German university students and cover the time between the 3rd and 5th semesters in a longitudinal design. Person-centered analytical tools were applied to tap interindividual differences in the motivational trajectories as well (...) as in integration profiles. Latent transition analyses revealed distinct links between the motivational trajectories and the integration profiles, pointing to additive effects of teacher and peer integration. Positive trajectories were more likely in the Highly than in Moderately Integrated profiles. The two profiles pointing to below-average integration levels showed the same probabilities for rather negative trajectories. The results are discussed against the backdrop of self-determination theory and additive vs. compensatory effects of teacher and peer integration, proposing a threshold model. (shrink)

Blatantly observable in the U.S. currently, the political chasm grows, representing a prototype of political polarization in most if not all western democratic political systems. Differential political psychology strives to trace back increasingly polarized political convictions to differences on the individual level. Recent evolutionary informed approaches suggest that interindividual differences in political orientation reflect differences in group-mindedness and cooperativeness. Contrarily, the existence of meaningful associations between political orientation, personality traits, and interpersonal behavior has been questioned critically. (...) Here, we shortly review evidence showing that these relationships do exist, which supports the assumption that political orientation is deeply rooted in the human condition. Potential reasons for the premature rejection of these relationships and directions for future research are outlined and implications for refinements and extensions of evolutionary informed approaches are derived. (shrink)

With the advent of the severe acute respiratory syndrome-Corona Virus type 2 pandemic, the theme of emotion recognition from facial expressions has become highly relevant due to the widespread use of face masks as one of the main devices imposed to counter the spread of the virus. Unsurprisingly, several studies published in the last 2 years have shown that accuracy in the recognition of basic emotions expressed by faces wearing masks is reduced. However, less is known about the impact that (...) wearing face masks has on the ability to recognize emotions from subtle expressions. Furthermore, even less is known regarding the role of interindividual differences in emotion processing. This study investigated the perception of all the six basic emotions, both as a function of the face mask and as a function of the facial expressions’ intensity in terms of participants’ uncertainty in their responses, misattribution errors, and perceived intensity. The experiment was conducted online on a large sample of participants. Participants completed the 20-item Toronto Alexithymia Scale and the Autistic Spectrum Quotient and then performed an emotion-recognition task that involved face stimuli wearing a mask or not, and displaying full or subtle expressions. Each face stimulus was presented alongside the Geneva Emotion Wheel, and participants had to indicate what emotion they believed the other person was feeling and its intensity using the GEW. For each combination of our variables, we computed the indices of ‘uncertainty’, ‘bias’, and ‘perceived intensity’. We found that face masks increase uncertainty for all facial expressions of emotion, except for fear when intense, and that disgust was systematically confused with anger. Furthermore, when faces were covered by the mask, all the emotions were perceived as less intense, and this was particularly evident for subtle expressions. Finally, we did not find any evidence of a relationship between these indices and alexithymic/autistic traits. (shrink)

In social interactions, emotional biases can arise when the emotional state of oneself and another person are incongruent. A person’s ability to judge the other’s emotional state can then be biased by their own emotional state, leading to an emotional egocentric bias (EEB). Alternatively, a person’s perception of their own emotional state can be biased by the other’s emotional state leading to an emotional altercentric bias (EAB). Using a modified audiovisual paradigm, we examined in three studies (n = 171; two (...) online & one lab-based study) whether emotional biases can be considered traits by measuring two timepoints within participant and relating empathy trait scores to emotional biases, as well as the electrophysiological correlates of emotional biases. In all studies, we found a congruency effect, reflecting an EEB and EAB of small size. Both biases failed to correlate significantly within participants across timepoints and did not display significant relationships with empathy trait scores. On the electrophysiological level, we did not find any neural emotional bias effects in the time–frequency domain. Our results suggest that EEB and EAB effects are strongly task sensitive. Caution is warranted when studying interindividual differences in emotional biases using this paradigm, as they did not show significant test-retest reliabilities. (shrink)

Children’s reasoning on food properties and health relationships can contribute to healthier food choices. Food properties can either be positive (“gives strength”) or negative (“gives nausea”). One of the main challenges in public health is to foster children’s dietary variety, which contributes to a normal and healthy development. To face this challenge, it is essential to investigate how children generalize these positive and negative properties to other foods, including familiar and unfamiliar ones. In the present experiment, we hypothesized that children (...) might rely on cues of food processing (e.g., signs of human intervention such as slicing) to convey information about item edibility. Furthermore, capitalizing on previous results showing that food rejections (i.e., food neophobia and picky eating) are a significant source of inter-individual variability to children’s inferences in the food domain, we followed an individual approach. We expected that children would generalize the positive properties to familiar foods and, in contrast, that they would generalize more often the negative properties to unfamiliar foods. However, we expected that children would generalize more positive and less negative properties to unfamiliar sliced foods than to whole unfamiliar foods. Finally, we expected that children displaying higher levels of food rejections would generalize more negative properties than children displaying lower levels of food rejections. One-hundred and twenty-six children, aged 3–6 years, performed an induction task in which they had to generalize positive or negative health-related properties to familiar or unfamiliar foods, whole or sliced. We measured children’s probability of generalization for positive and negative properties. The children’s food rejection score was assessed on a standardized scale. Results indicated that children evaluated positively familiar foods (regardless of processing), whereas they tend to view unfamiliar food negatively. In contrast, children were at chance for processed unfamiliar foods. Furthermore, children displaying higher levels of food rejections were more likely to generalize the negative properties to all kinds of foods than children displaying lower levels of food rejections. These findings entitle us to hypothesize that knowledge-based food education programs should take into account the valence of the properties taught to children, as well as the state of processing of the food presented. Furthermore, one should take children’s interindividual differences into account because they influence how the knowledge gained through these programs may be generalized. (shrink)

Urban dwellers are more likely to develop mental disorders such as mood and anxiety disorder as well as schizophrenia compared to rural dwellers. Moreover, it has been demonstrated that even short-term exposure to nature can improve mood and decrease stress, but the underlying neural mechanisms are currently under investigation. In the present intervention study we examined the effects of a one-hour walk in an urban vs. natural environment on activity in the amygdala, a brain region previously associated with stress processing. (...) Before and after the walk 63 participants underwent an fMRI paradigm inducing social stress. Since there is a pronounced gap in the literature regarding interindividual differences in stress-related neural effects of urban and natural environments, we set out to explore sex differences. We observed that amygdala activity decreased after the walk in nature, but only in women, suggesting that women may profit more from salutogenic effects of nature. Moreover, performance on the arithmetic tasks improved in women after the walk in nature, whereas men performed better after the walk in the urban environment. To our knowledge, this is the first study to report differencial tendencies in men and women concerning the stress-related neural activity as an effect of acute exposure to urban vs. natural environments. Furthermore, our findings highlight the importance of sex differences when exploring effects of the environment on brain function and stress. Evidence for beneficial effects of nature on stress-related brain regions may inform urban design policies to focus on providing more accessible green areas in cities and this study suggests that sex differences in experiencing the environment should be taken into consideration. (shrink)

The Handbook of Value combines the forces of the many disciplines involved in value research, by integrating the perspectives of distinguished scholars from the different disciplines. Contributions cover conceptual issues such as definitions of value, psychological and neurological mechanisms underlying value computation and representation, types and taxonomies of value, interindividual and intercultural value differences, the role of value in emotion, moral judgment, decision-making and behavior, as well as case studies of individual varieties of value. The volume contributes to (...) an interdisciplinary dialogue and integration by providing a common reference point that may serve as a resource for disciplinary excellence and interdisciplinary cross-fertilization. (shrink)

Attention-deficit/hyperactivity disorder is a neurodevelopmental disorder with a childhood prevalence of 5%. In about two-thirds of the cases, ADHD symptoms persist into adulthood and often cause significant functional impairment. Based on the results of family and twin studies, the estimated heritability of ADHD approximates 80%, suggests a significant genetic component in the etiological background of the disorder; however, the potential genetic effects on disease risk, symptom severity, and persistence are unclear. This article provides a brief review of the genome-wide and (...) candidate gene association studies with a focus on the clinical aspects, summarizing findings of ADHD disease risk, ADHD core symptoms as dimensional traits, and other traits frequently associated with ADHD, which may contribute to the susceptibility to other comorbid psychiatric disorders. Furthermore, neuropsychological impairment and measures from neuroimaging and electrophysiological paradigms, emerging as potential biomarkers, also provide a prominent target for molecular genetic studies, since they lie in the pathway from genes to behavior; therefore, they can contribute to the understanding of the underlying neurobiological mechanisms and the interindividual heterogeneity of clinical symptoms. Beyond the aforementioned aspects, throughout the review, we also give a brief summary of the genetic results, including polygenic risk scores that can potentially predict individual response to different treatment options and may offer a possibility for personalized treatment for the therapy of ADHD in the future. (shrink)

Until now, adult crying has received relatively little interest from investigators, whereas in the popular media there are many strong claims about crying of which the scientific basis is not clear. In this review, we provide an overview of the current state of the scientific literature with respect to crying. We identify gaps in knowledge and propose questions for future research. The following topics receive special attention: Ontogenetic development, antecedents, individual and gender differences, and the intra- and interindividual (...) effects of crying. We conclude that the study of crying may help us obtain better insight into human nature, that is, not only our emotional, but also social, and moral functioning. (shrink)

The Handbook of Value combines the forces of the many disciplines involved in value research, by integrating the perspectives of distinguished scholars from the different disciplines. Contributions cover conceptual issues such as definitions of value, psychological and neurological mechanisms underlying value computation and representation, types and taxonomies of value, interindividual and intercultural value differences, the role of value in emotion, moral judgment, decision-making and behavior, as well as case studies of individual varieties of value. The volume contributes to (...) an interdisciplinary dialogue and integration by providing a common reference point that may serve as a resource for disciplinary excellence and interdisciplinary cross-fertilization. (shrink)

Mainstream risk analysis deviates in at least two important respects from the rationality ideal of mainstream economics. First, expected utility maximization is not applied in a consistent way. It is applied to endodoxastic uncertainty, i.e. the uncertainty (or risk) expressed in a risk assessment, but in many cases not to metadoxastic uncertainty, i.e. uncertainty about which of several competing assessments is correct. Instead, a common approach to metadoxastic uncertainty is to only take the most plausible assessment into account. This will (...) typically lead to risk-prone deviations from risk-neutrality. Secondly, risks and benefits for different persons are added to form a total value of risk. Such calculations are used to support the view that one should accept being exposed to a risk if it brings greater benefits for others. This is in stark contrast to modern Paretian welfare economics, that refrains from interindividual comparisons and does not require people to accept a disadvantage because it brings a larger advantage for others. (Published Online July 11 2006). (shrink)

Recent developments in moral psychology and in evolutionary theories of moral behavior focus on individual and group differences in morality. Moral intuitions may differ depending on sex, age, ecology and evolutionary strategy of the individual. Within the individual, different and mutually incompatible moral intuitions are triggered depending on specific aspects of the situation. Thus there exist interindividual and intraindividual differences in moral intuitions. This diversity of our moral intuitions has led naturalistic and evolutionary ethicists to question normative (...) theories that articulate universal and mutually consistent moral principles. For example, E.O. Wilson has suggested that we cannot impose a single set of moral standards on all human populations or sex-age classes, for this would “create complex, intractable moral dilemmas”. On the other hand, if we are not all in the same game, living together may not work very well, especially if we conceive of moral principles as universally valid. There seems to be a trade-off between moral principles that are intuitively acceptable and moral principles that are universally valid. The literature on naturalistic and evolutionary ethics discusses which implications scientific data can and cannot have on normative questions. I critically apply this discussion to the topic of normative implications of inter- and intraindividual differences in moral intuitions. (shrink)

The article presents the findings of a historical-philosophical analysis of the Gordin brothers’ works during their period of emigration. This is the first study in Russian historiography dedicated to the conceptual legacy of these two thinkers following their forced departure from the USSR. The authors draw attention to the fact that the biography of the Gordin brothers continues to evoke numerous questions within the scholarly community, and their years in the USA remains under-researched not only by Russian scholars but also (...) by their international counterparts. The article primarily examines philosophical-anthropological and social-philosophical issues. It is demonstrated that both W.L. Gordin and A.L. Gordin remained true to their spiritual bearings in emigration. W.L. Gordin continued his investigations in the field of the philosophy of technology and ontology, whereas A.L. Gordin sustained his work on a doctrine he termed “interindividualism.” The authors identify both similarities and differences in the intellectual explorations of the Gordin brothers. Special emphasis is placed on exploring how philosophical individualism influenced the intellectual pursuits of the thinkers, and how this manifested both in philosophical anthropology and social philosophy. Furthermore, their attitudes towards religion (especially Judaism), contemporary political doctrines (particularly Marxism), and scientific progress (especially quantum theory) are investigated. In emigration, W.L. Gordin remained an atheist, while his brother, conversely, developed a personal understanding of God, with whom the Ego engages in ongoing dialogue. In conclusion, it is posited that while the works of A.L. Gordin (in their conceptual content) align closely with the philosophical treatises of M. Buber (as well as the works of other philosophers inspired by Judaism), the writings of W.L. Gordin to some extent anticipated early transhumanism. (shrink)

We investigated the key anatomical structures mediating interhemispheric integration during the perception of apparent motion across the retinal midline. Previous studies of commissurotomized patients suggest that subcortical structures mediate interhemispheric transmission but the specific regions involved remain unclear. Here, we exploit interindividual variations in the propensity of normal subjects to perceive horizontal motion, in relation to vertical motion. We characterize these differences psychophysically using a Dynamic Dot Quartet (an ambiguous stimulus that induces illusory motion). We then tested for (...) correlations between a tendency to perceive horizontal motion and fractional anisotropy (FA) (from structural diffusion tensor imaging), over subjects. FA is an indirect measure of the orientation and integrity of white matter tracts. Subjects who found it easy to perceive horizontal motion showed significantly higher FA values in the pulvinar. Furthermore, fiber tracking from an independently identified (subject-specific) visual motion area converged on the pulvinar nucleus. These results suggest that the pulvinar is an anatomical hub and may play a central role in interhemispheric integration. (shrink)

Vocal imitation in songbirds exhibits interesting parallels to infant speech development and is currently the model system of choice for exploring the behavioural, molecular and electrophysiological substrates of vocal learning. Among songbirds, the Zebra Finch ( Taeniopygia guttata ) is currently used as the `flying mouse' of birdsong research. Only males sing and they develop their song primarily during a short sensitive period in early life. They learn their speciesspecific song patterns by memorizing and imitating the songs of conspecifics, mainly (...) adults. Since Immelmann's pioneering work, thousands of zebra finches have been raised in strictly controlled auditory environments to examine how their experience affected their songs. In this article, I review the different experimental procedures that have been used in the laboratory to study the social influences on song learning in the Zebra Finch. Poor song learning was observed using passive playback of taped songs, whereas self-eliciting exposure using operant tutoring techniques induced significant learning, but with a high interindividual variability. The success of the training paradigm is often measured by the quality of imitation of the songs to which the young bird is exposed. Using empirical evidence from the field and the laboratory, I will also discuss this issue, by summarizing possible advantages and disadvantages of producing a perfect imitation. So far, the best method to get a close copy of a song model in the Zebra Finch is to place a single young bird with an adult male. This situation, which is rather unnatural, does not meet the criteria for precise control necessary in experimental conditions. Optimizing the methods used to train a zebra finch to learn a song, in order to be able to predict the imitation success, will improve our understanding of the dynamics of vocal production learning. It would also consolidate this species as a research model of relevance to human speech development and disorders. Keywords: Zebra Finch; birdsong; learning; development; memory; social influences. (shrink)

Social network analysis has gained increasing academic attention in the construction domain over the past two decades due to its capability to characterize the complexity and dynamics of interindividual and interorganizational interactions. To date, however, scant attempt has been made to develop an integrated framework to systematically review the diversified network research at different levels in this domain and to quantitatively characterize the evolution of related research interests and research instruments. This study aims to fill this gap by conducting (...) a bibliometric-qualitative review based on 106 papers published from 1997 to 2020. Keyword cooccurrence analysis is employed to reveal the research foci, identify the research trends, and develop a comprehensive categorization framework, which classifies related research based on two interrelated dimensions: the type of network node and the levelof network analysis. The framework then facilitates further content analysis in terms of research topics, research designs, and research instruments. The results provide evidence that the research foci in this domain are generally moving towards addressing the complexity and dynamics of project-related relations at more diversified levels, in terms of not only research topics but also research instruments. Future research can be enriched by investigating the multiple types of dynamic interproject relationships, adopting state-of-the-art methodologies for network data collection and triangulation, and employing multiple SNA constructs and inferential statistical methods to reveal how complex networks coevolve and interact with actors’ behaviors as well as project and organizational outcomes. (shrink)

The concepts of the innateness, universality, species-specificity, and autonomy of the human language capacity have had an extreme impact on the psycholinguistic debate for over thirty years. These concepts are evaluated from several neurobiological perspectives, with an emphasis on the emergence of language and its decay due to brain lesion and progressive brain disease.Evidence of perceptuomotor homologies and preadaptations for human language in nonhuman primates suggests a gradual emergence of language during hominid evolution. Regarding ontogeny, the innate component of language (...) capacity is likely to be polygenic and shared with other developmental domains. Dissociations between verbal and nonverbal development are probably rooted in the perceptuomotor specializations of neural substrates rather than the autonomy of a grammar module. Aphasiologicaldata often assumed to suggest modular linguistic subsystems can be accounted for in terms of a neurofunctional model incorporating perceptuomotor-based regional specializationsand distributivity of representations. Thus, dissociations between grammatical functors and content words are due to different conditions of acquisition and resulting differences in neural representation. Human brains are characterized by multifactorial interindividual variability, and strict universality of functional organization is biologically unrealistic.A theoretical alternative is proposed according to which (1) linguistic specialization of brain areas is due to epigenetic and probabilistic maturational events, not to genetic ”hard-wiring,” and (2) linguistic knowledge is neurally represented in distributed cell assemblies whose topography reflects the perceptuomotor modalities involved in the acquisition and use of a given item of knowledge. (shrink)

Reasoning about underlying causal relations drives responsibility judgments: agents are held responsible for the outcomes they cause through their behaviors. Two main causal reasoning approaches exist: dependence theories emphasize statistical relations between causes and effects, while transference theories emphasize mechanical transmission of energy. Recently, pluralistic or hybrid models, combining both approaches, have emerged as promising psychological frameworks. In this paper, we focus on causal reasoning as involved in third-party judgements of responsibility and on related judgments of intention and control. In (...) particular, we used a novel visual paradigm to investigate the combined effects of two well-known causal manipulations, namely omission and pre-emption, on these evaluations. Our findings support the view that people apply a pluralistic causal reasoning when evaluating individual responsibility for negative outcomes. In particular, we observed diminished responsibility when dependence, transference, or both fail, compared to when these mechanisms are upheld. Responsibility judgement involves a cognitive hybrid of multiple aspects of causal reasoning. However, important differences exist at the interindividual level, with most people weighting transference more than dependence. (shrink)

Vocal imitation in songbirds exhibits interesting parallels to infant speech development and is currently the model system of choice for exploring the behavioural, molecular and electrophysiological substrates of vocal learning. Among songbirds, the Zebra Finch is currently used as the ‘flying mouse’ of birdsong research. Only males sing and they develop their song primarily during a short sensitive period in early life. They learn their speciesspecific song patterns by memorizing and imitating the songs of conspecifics, mainly adults. Since Immelmann's pioneering (...) work, thousands of zebra finches have been raised in strictly controlled auditory environments to examine how their experience affected their songs. In this article, I review the different experimental procedures that have been used in the laboratory to study the social influences on song learning in the Zebra Finch. Poor song learning was observed using passive playback of taped songs, whereas self-eliciting exposure using operant tutoring techniques induced significant learning, but with a high interindividual variability. The success of the training paradigm is often measured by the quality of imitation of the songs to which the young bird is exposed. Using empirical evidence from the field and the laboratory, I will also discuss this issue, by summarizing possible advantages and disadvantages of producing a perfect imitation. So far, the best method to get a close copy of a song model in the Zebra Finch is to place a single young bird with an adult male. This situation, which is rather unnatural, does not meet the criteria for precise control necessary in experimental conditions. Optimizing the methods used to train a zebra finch to learn a song, in order to be able to predict the imitation success, will improve our understanding of the dynamics of vocal production learning. It would also consolidate this species as a research model of relevance to human speech development and disorders. Keywords: Zebra Finch; birdsong; learning; development; memory; social influences. (shrink)

It is primordial to insist on a continuous education that is open, flexible, and personalized, allowing the individual to update and make his or her knowledge adequate throughout life. The creation of distributed environments for constructivist learning is a challenge. Research in this field is needed for the development of cooperative learning tools able to facilitate and motivate learning. The development of intelligent didactic systems is complex, demanding the support of knowledge coming from different fields. That is why to develop (...) this class of systems a multidisciplinary team is needed, including pedagogues; educational psychologists; specialists in the knowledge domain; and technicians in computer graphics, programming, multimedia, virtual reality, project management, and so forth. Virtual immersion introduces new resources for interindividual communications that deal with reality interpretation. The authors outline the beginning of a long journey on how imagination power can be used for the collective creation of worlds able to improve learning. (shrink)

Communication is inherent to social relationships. Previous papers addressed the correlation between social and communicative complexity, and the origin of sociality in rodents. In subterranean social species, as the number of animals in the same burrow increases, so do interindividual contact rates. This is because of limitations in actually used tunnel length and diameter, leading to an increasing number of agonistic situations probably resulting in time loss, threatening, and fighting with danger of injuries. To avoid this, social species are (...) expected to have an increase in the number of particular vocalizations. Comparison of the adult vocal repertoire of 12 species through regression and phylogenetically independent contrasts suggests three main conclusions: social species increase their repertoire both in number and categories of vocal signals in relation to solitary species, although the coefficient was smaller in the PIC model; the number of agonistic vocalizations was also different between solitary and social species, with the latter displaying higher numbers of these calls; the percentage of agonistic vocalizations in relation to total repertoire was similar between social and solitary species, with no significant relationship between this parameter and the social structure. These results imply that agonistic vocalizations have also increased in number in social species, indicating the importance of these calls in the establishment of new relationships. As repertoire changes are essential to cope with new and frequent kinds of interactions sociality originates, these results suggest that at least for these organisms, communicative changes, especially at the level of agonistic signals, could be a necessary condition to fulfill in the path to the possibility of group living. (shrink)

Arts education in schools frequently experiences the pressure of being validated by demonstrating quantitative impact on academic outcomes. The quantitative evidence to date has been characterized by the application of largely correlational designs and frequently applies a narrow focus on instrumental outcomes such as academically relevant competencies. The present review aims to summarize quantitative evidence from quasi-experimental and experimental studies with pre-test post-test designs on the effects of school-based arts education on a broader range of competency outcomes, including intra- and (...) interindividual competencies. A systematic literature search was conducted to identify relevant evaluation studies. Twenty-four articles reporting on 26 evaluation studies were eligible for inclusion, and their results were reviewed in terms of art domains and outcome categories. Whilst there is some evidence of beneficial effects on some competencies, for example of music education on arithmetic abilities, speech segmentation and processing speed, the evidence across arts domains and for different outcomes is limited due to small sample sizes, small number of studies, and a large range of effect sizes. The review highlights that sufficiently powered experimental studies with pre-test post-test designs evaluating arts education are sparse and that the “gold standard” of experimental research comes at the expense of a number of other study characteristics such as sample size, intervention and follow-up length. By summarizing the limitations of the current experimental research, the application of experimental designs is critically assessed and a combination with qualitative methods in mixed-method designs and choice of relevant outcomes discussed. (shrink)

Purpose. The paper considers the fear of social alienation of love. It is within the limits of psychoanalytic epistemology, the analysis of which will be presented in the article, the tendencies to monotony and universal solutions with an emphasis on ensuring the objectivity of the problem of gender alienation, to be more exact, the fear of love, which causes the gender process, are viewed most reliably. In view of the above the purpose of the paper is to investigate the conceptual (...) contradictions associated with the reconstruction of basic measurements of the fear of alienation of love within different ideological approaches; to reveal the most significant contradictions that manifest themselves in the differences between secular and religious frames; to determine a philosophical and fundamental foundation for the types of fear: metaphysical, transcendental and social, which to some extent have influenced the development of a gender tradition. The paper investigates the fear of alienation of love, not as an instinct or psychological experience, or as a social factor, but as a correlation between the functional types of fear and the peculiarities of social and cultural processes, and it acts as a dependence of the European societies on the various functional forms of fear of love that influence the processes of social transformations. Theoretical basis. The authors determine that in the gender approach the subject, who is cognized, has specific desires and interests. The process of cognation is local, contextual, in which physiologically and spiritually the fear of alienation of love is closely linked to the conditions of existence of people, with the arrangement of social and individual life. In modern civilization, true love with some exceptions, is fleeting. It is now hindered by the burdens of life, and ideological settings, which go only from the "I", and not from the common "I and You", contributing to frustration and alienation. Originality. The emphasis is placed on the fact that the fear of alienation of love, as a way of identifying the essential characteristics of "I", acts as an existential, which concentrates on the sense-life range of problems. The range of problem in a single topic is in the "point I", surrounded by gender boundaries, it contains as a condition for its manifestation the personality distancing – free or forced consolidation and assertion of the autonomy of the individual. Alienation of love as an existential admits in the register of the intimate, intentional for self-perception, internal state to organize and identify with the "authentic I". Conclusions. The article establishes that gender identity under the conditions of modern socio-psychological crisis is associated with forming a special "picture of fear, anxiety, loneliness" as a part of that internal and external world, generated by alienation from society. The fear of alienated love acts as the essential existential of human being, which is a necessary existential condition of the existential tension that occurs as an antipode and a characteristic of courage, asceticism, and the "beginning of wisdom". The considered phenomenon of the fear of alienation of love is interpreted as the result of the ontological and gender alienation of a person who has lost a sense of security and plunged into a continuous interindividual rivalry. (shrink)

The purpose of this study is to reveal the function of the concept of Infāq, which is included in the terminology of the Qurʾān itself, in social assistance and solidarity. Poverty has always been one of the social problems from past to present. Although it is analyzed differently in each society via different criteria, poverty generally refers to the condition in which a person lacks the basic necessities for a minimum living standard. Unfortunately, millions of people starve for basic biological (...) and social needs such as nutrition, shelter, education, health, and even water. This is a shame for the humanity. There are both international and national charities working to reduce the misery and poverty. However, due to socio-economic and structural problems such as globalization, disproportion in income distribution, unemployment, overpopulation, economic crises, lack of social security systems, and wars, poverty rises gradually and it is still one of the major social problems needed to be solved. Islam which is the last one of Abrahamic religions and its holy book Qurʾān consider social cooperation and solidarity pretty important within the context of Infāq and hold the believers responsible for the organization of social life. Infāq is an umbrella concept in the Qurʾān, referring to all expenses and cooperation in the name of Allah and it is one of the main qualities of believers. Infāq, which includes other forms of cooperation such as obligatoryalms (zakāt) and charity (ṣadaqā), enables a person to share his tangible values with those who have worse life conditions than himself. In this way, the Quran aims to promote human relations and thereby enhancement and peace in the society. In other words, Infāq aims to eliminate social injustice which refers to social and economic inequalities, to protect the economically weak people against the difficulties in life, and thereby, to maintain economic and social stability. Helping the needy is a powerful path toward having spiritual peace, removing selfish feelings, and keeping emotional wellbeing. People with good mental health will be able to build more humane relationships with others. It is obvious that Infāq would play an important role inbuilding a sense of fellowship and trust. A wealth of person who shares his wealth with the poor will be deemed legitimate by the needy people. Thus, the needy people would be freed from negative feelings and behaviors such as jealousy, incapacity, hatred, bullying, and hostility, and feel a sense of fellowship and gratitude towards those who have better life conditions. One of the most important reasons for robbery, extortion, purse-snatching, and etc., which are currently occurring more frequently, is economic deprivation. Considering the fact that this kind of incidents takes place more frequently in poor countries than developed ones, it is obvious that Infāq has a strategic role in fulfilling the basic needs of the needy. Poverty might be linked to violence, which might end up with murder. Infāq which is divine cooperation approach would take an important role in fighting against criminal incidents that cause fear and indignation. Moreover, the Quran does not specify any certain economic condition to be able to do Infāq, and thereby, it makes people with various economic abilities become a part of the social cooperation. As everyone would take care of people who are relatively worse off, interindividual trust will be strengthen and circle of cooperation will be expanded. According to the Qurʾān, people’s all goods and possessions actually belong to Allah. People are just the trustees of this wealth. Allah grants as much wealth as He wills to whomever He wills. While the rich is responsible for sharing their wealth with the needy, the poor is responsible for bearing the troubles caused by poverty with patience and endeavoring to make money in a halal way. Unless Infāq is done in order to please Allah, it does not have any significance in the presence of Allah. The reason why people have different material living conditions is that both the poor and the rich are subject to test. Thus, they would get rewards for hereafter besides the sustaining of social unity and solidarity. Allah is the only warrantor of the tangible and spiritual wealth gained in return for Infāq. (shrink)

BackgroundThe objective of this study was to describe, through measurement of physical activity and observation of free outdoor play, the relation between children’s free play and the spatial layout of the playground. To accomplish this, we altered the spatial layout of the same playground to see how the layout affects the play activity and the physical activity levels in the same children.MethodsParticipants were six young children. Participants’ physical activity level and the duration of different types of action that occurred in (...) each area and their transitions were compared before and after the alteration of the play-equipment layout using the data from accelerometers and video recordings.ResultsA significant increase in physical activity occurred after the spatial layout alteration, which was related to action differences. Before the alteration, children tended to play in a similar manner for a given play area; however, after the alteration, pronounced interindividual variation in play activity across children was observed.ConclusionThe present pilot study found that in free play situations in the outdoor playground, the spatial layout of playground affects the pattern of play activity and the physical activity levels of young children. (shrink)

It is suggested that a connection between neurogenesis and brain part size is unsurprising. It is argued that neurogenesis cannot, however, be the only factor contributing to brain size. Highly individual post-natal experience radically shapes individual brains, leading to dramatic increases in brain size. The role of comparatively coarse statistical techniques in addressing these subtle biological issues is questioned.

Excellence in sport performance is normally taken to be a matter of superior performance of physical movements or quantitative outcomes of movements. This paper considers whether a wider conception can be afforded by certain kinds of nature based sport. The interplay between technical skill and aesthetic experience in nature based sports is explored, and the extent to which it contributes to a distinction between different sport-based approaches to natural environments. The potential for aesthetic appreciation of environmental engagement is found to (...) be strongly dependent on whether or not environmental engagement is exploited for the end of producing a quantifiable result or enhancing technical skill. It is also argued that an existential rather than spectatorial attitude to aesthetic experience is offered by specifically nature oriented sport. Aesthetic experience achieved in this way is therefore neither passive nor detached, but extends Berleant's concept of participatory environmental aesthetics and underpins both an alternate (wide) conception of excellence in sport activity and a richer experience of aesthetic engagement than more objectivised standpoints. (shrink)