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Although usually thought of as external environmental stressors, a significant heritable component has been reported for measures of stressful life events (SLEs) in twin studies. Method We examined the variance in SLEs captured by common genetic variants from a genome-wide association study (GWAS) of 2578 individuals. Genome-wide complex trait analysis (GCTA) was used to estimate the phenotypic variance tagged by single nucleotide polymorphisms (SNPs). We also performed a GWAS on the number of SLEs, and looked at correlations between siblings. A significant proportion of variance in SLEs was captured by SNPs (30%, p = 0.04). When events were divided into those considered to be dependent or independent, an equal amount of variance was explained for both. This 'heritability' was in part confounded by personality measures of neuroticism and psychoticism. A GWAS for the total number of SLEs revealed one SNP that reached genome-wide significance (p = 4 × 10-8), although this association was not replicated in separate samples. Using available sibling data for 744 individuals, we also found a significant positive correlation of R 2 = 0.08 in SLEs (p = 0.03). These results provide independent validation from molecular data for the heritability of reporting environmental measures, and show that this heritability is in part due to both common variants and the confounding effect of personality.

Covert facial mimicry involves subtle facial muscle activation in observers when they perceive the facial emotional expressions of others. It remains uncertain whether prototypical facial features in emotional expressions are being covertly mimicked and also whether covert facial mimicry involves distinct facial muscle activation patterns across muscles per emotion category, or simply distinguishes positive versus negative valence in observed facial emotions. To test whether covert facial mimicry is emotion-specific, we measured facial electromyography (EMG) from five muscle sites (corrugator supercilii, levator labii, frontalis lateralis, depressor anguli oris, zygomaticus major) whilst participants watched videos of people expressing 9 different basic and complex emotions and a neutral expression. This study builds upon previous research by including a greater number of facial muscle measures and emotional expressions. It is the first study to investigate activation patterns across muscles during facial mimicry and to provide evidence for distinct patterns of facial muscle activation when viewing individual emotion categories, suggesting that facial mimicry is emotion-specific, rather than just valence-based.

There has been much research on sex differences in the ability to recognise facial expressions of emotions, with results generally showing a female advantage in reading emotional expressions from the face. However, most of the research to date has used static images and/or 'extreme' examples of facial expressions. Therefore, little is known about how expression intensity and dynamic stimuli might affect the commonly reported female advantage in facial emotion recognition. The current study investigated sex differences in accuracy of response (Hu; unbiased hit rates) and response latencies for emotion recognition using short video stimuli (1sec) of 10 different facial emotion expressions (anger, disgust, fear, sadness, surprise, happiness, contempt, pride, embarrassment, neutral) across three variations in the intensity of the emotional expression (low, intermediate, high) in an adolescent and adult sample (N = 111; 51 male, 60 female) aged between 16 and 45 (M = 22.2, SD = 5.7). Overall, females showed more accurate facial emotion recognition compared to males and were faster in correctly recognising facial emotions. The female advantage in reading expressions from the faces of others was unaffected by expression intensity levels and emotion categories used in the study. The effects were specific to recognition of emotions, as males and females did not differ in the recognition of neutral faces. Together, the results showed a robust sex difference favouring females in facial emotion recognition using video stimuli of a wide range of emotions and expression intensity variations.

Most of the existing sets of facial expressions of emotion contain static photographs. While increasing demand for stimuli with enhanced ecological validity in facial emotion recognition research has led to the development of video stimuli, these typically involve full-blown (apex) expressions. However, variations of intensity in emotional facial expressions occur in real life social interactions, with low intensity expressions of emotions frequently occurring. The current study therefore developed and validated a set of video stimuli portraying three levels of intensity of emotional expressions, from low to high intensity. The videos were adapted from the Amsterdam Dynamic Facial Expression Set (ADFES) and termed the Bath Intensity Variations (ADFES-BIV). A healthy sample of 92 people recruited from the University of Bath community (41 male, 51 female) completed a facial emotion recognition task including expressions of 6 basic emotions (anger, happiness, disgust, fear, surprise, sadness) and 3 complex emotions (contempt, embarrassment, pride) that were expressed at three different intensities of expression and neutral. Accuracy scores (raw and unbiased (Hu) hit rates) were calculated, as well as response times. Accuracy rates above chance level of responding were found for all emotion categories, producing an overall raw hit rate of 69% for the ADFES-BIV. The three intensity levels were validated as distinct categories, with higher accuracies and faster responses to high intensity expressions than intermediate intensity expressions, which had higher accuracies and faster responses than low intensity expressions. To further validate the intensities, a second study with standardised display times was conducted replicating this pattern. The ADFES-BIV has greater ecological validity than many other emotion stimulus sets and allows for versatile applications in emotion research. It can be retrieved free of charge for research purposes from the corresponding author.

The first book length study of agonism as a mature account of democratic politics, Institutionalizing Agonistic Democracy provides a lucid overview of agonistic democratic theories and demonstrates the viability of this approach for institutional politics. Situating agonistic democracy within and against debates about radical democracy, foundationalism, liberal democracy, and pluralism, Institutionalizing Agonistic Democracy engages the texts of Mouffe, Connolly, Ranciere, Tully, Honig, Owen, and others to fully map the contours of agonistic democratic theories. Organizing this diverse literature into a coherent typology enables sophisticated analysis of the assumptions, distinctions, and aspirations of the often conflicting theoretical positions gathered within the constellation of agonistic democratic theory. Using this framework to explore the concrete institutional possibilities appropriate to agonistic democracy, Wingenbach argues that a modified version of Rawlsian political liberalism describes the institutional conditions most likely to sustain agonistic political practices. Once shorn of metaphysical commitments and detached from aspirations to consensus, political liberalism offers a contingent and historically viable framework within which agonistic contestation can occur. Such a reinterpretation of Rawls produces not the sublimation of agonism but a transformation of liberalism, so that it more adequately accommodates the deep pluralism of the post-foundational condition.

A portrait of [John Lorenzo Hubbell] hangs over the fireplace and bears a striking resemblance to Teddy Roosevelt. (The Navajo called Hubbell \"Double Glasses\"). But even more vividly portrayed are the Navajo and the Southwest. Bookcases overflow. Indian rugs lie everywhere. Woven straw baskets from various tribes cover the high, log-beamed ceiling. If Navajo trading posts are a dying breed, Navajo crafts are not. [Bill Malone] sells about 2,500 rugs per year. They range in price from $60 to $7,500. A 3-by-5-foot rug sells for $300. \"I think when it takes months to weave a rug, and you have the charisma and charm of the weaver in the rug, they're not overpriced,\" Malone said. \"And where could you get a better quality Navajo rug?\"

[This corrects the article DOI: 10.1371/journal.pone.0147112.].

Postsecondary students can experience anxiety or stress upon initial entry into large campus classrooms or education abroad settings. Social phobia scrutiny fears combined with social interaction anxieties may culminate in social anxiety disorder or social stress. Social stress may negatively affect one’s enjoyment and fulfillment of learning and one’s ability to learn. This study investigated relationships between students’ social stress, educational setting, learning style, and demographics using the Social Phobia Scale, Social Interaction Anxiety Scale, and the Learning Styles Inventory. Through a multiple correlational design, quantitative analysis revealed that social stress was positively associated with reflective observation and assimilative learning styles, but negatively associated with active experimentation learning styles for 144 students at a large southern US university. Females and on-campus students experienced more social stress than did males or those who participated in education abroad. Multiple linear regression revealed a significant increased level of social stress among minority students. About 18% of the variance in social stress was accounted for by significant independent variables (accommodative and convergent learning styles, being male, and Caucasian). Increased understanding of associations between social stress and learning style will help educators develop learning activities that promote inclusiveness for all. Continued research is needed to learn how to decrease social stressors in postsecondary education, especially for female and minority students to enable equitable learning spaces.

Background: Individuals with child maltreatment (CM) experiences show alterations in emotion recognition (ER). However, previous research has mainly focused on populations with specific mental disorders, which makes it unclear whether alterations in the recognition of facial expressions are related to CM, to the presence of mental disorders or to the combination of CM and mental disorders, and on ER of emotional, rather than neutral facial expressions. Moreover, commonly, recognition of static stimulus material was researched. Objective: We assessed recognition of dynamic (closer to real life) negative, positive and neutral facial expressions in individuals characterised by CM, rather than a specific mental disorder. Moreover, we assessed whether they show a negativity bias for neutral facial expressions and whether the presence of one or more mental disorders affects recognition. Methods: Ninety-eight adults with CM experiences (CM+) and 60 non-maltreated (CM−) adult controls watched 200 non-manipulated coloured video sequences, showing 20 neutral and 180 emotional facial expressions, and indicated whether they interpreted each expression as neutral or as one of eight emotions. Results: The CM+ showed significantly lower scores in the recognition of positive, negative and neutral facial expressions than the CM− group (p < .050). Furthermore, the CM+ group showed a negativity bias for neutral facial expressions (p < .001). When accounting for mental disorders, significant effects stayed consistent, except for the recognition of positive facial expressions: individuals from the CM+ group with but not without mental disorder scored lower than controls without mental disorder. Conclusions: CM might have long-lasting influences on the ER abilities of those affected. Future research should explore possible effects of ER alterations on everyday life, including implications of the negativity bias for neutral facial expressions on emotional wellbeing and relationship satisfaction, providing a basis for interventions that improve social functioning. Child maltreatment (CM) in adults is linked to emotion recognition alterations if no current mental disorders are present. Interpretation of positive, negative and neutral facial expressions is impaired. Adults with a history of CM tend to interpret neutral expressions as negative.