Reports of the Death of Expertise May Be Exaggerated: Limits on Knowledge Resistance in Health and Medicine

During the past decade the idea that expertise is dead, or at best moribund, has become commonplace. Knowledge resistance appears to be growing more politicized and is increasing across a wide range of science-based topics, such as agriculture, evolution and genetics, vaccination, and climate change; even flat-earth beliefs are undergoing a renaissance. But in many of these areas, denying expert authority is cost-free in everyday behavior, making it more rational for people to prize identity and group affiliation over realism. To probe the health of expertise in a domain with everyday consequences for knowledge resistance, we conducted three incentive-compatible studies of laypeople’s preferences for sources of information they would read about specific medical conditions (e.g., heart disease, cancer, COVID-19). We found quite rational preference patterns, by which people preferred sources based on experts (physicians and scientists) over non-experts (celebrities and politicians) and group consensus (professional societies, polls) over individual opinions. These findings held most strongly for issues of personal medical concern, but were robust for less concerning health conditions, and for the highly politicized topic of COVID-19. Individuals who scored higher in intellectual humility and preferences for rational over experiential thinking were more likely to prefer the most expert sources. Expertise retains broad respect in the medical domain, at least when one’s own health is at stake.

Ensemble participation and personal development

Participation in leisure activities offers a range of social, emotional, and personal benefits and research investigating the value of musical participation for leisure confirms similar benefits. Music is thought to play a role in the development of self-identity, which suggests that musical leisure may also offer opportunities for individuals to develop, refine, or maintain personal identities. This chapter explores the ways in which the psychological dimensions of ensemble cultures facilitate personal development during adulthood. The chapter proposes that dimensions of group affiliation, opportunities for learning, pleasure and rejuvenation, wellbeing, and identity characterize amateur ensemble participation and impact upon the personal, psychological, and musical development of those who participate. The chapter discusses the ways in which ensembles afford opportunities for individuals to develop motivation and confidence in their working/personal lives, a clear sense of belonging and personal meaning, and an enriched sense of self.

Human freezing responses to virtual characters in immersive virtual reality are impacted by body expression, group affiliation and threat proximity

Social threat requires fast adaptive reactions. One prominent threat-coping behavior present in humans is freezing, of which heart rate deceleration and reduced postural mobility are two key components. Previous studies focused mainly on freezing reactions in rodents, but now virtual reality offers unique possibilities for controlled and ecologically valid lab-based experiments. Using immersive virtual reality, this study examined how several understudied aspects of social threat, i.e., emotional body expressions, group affiliation, and distance from the potential threat, affect freezing behavior in humans. Reduced heart rate and postural mobility were observed in participants when they faced aggressive-looking and proximal avatars. Freezing was also observed for ingroup aggression when participants were embodied in a black-skinned virtual body and faced black-skinned aggressive and proximal avatars. Our results, based on a highly ecological virtual reality paradigm, provide novel evidence on the social factors that elicit freezing behavior in humans.

Limited Scope for Group Coordination in Stylistic Variations of Kolam Art

In large, complex societies, assorting with others with similar social norms or behaviors can facilitate successful coordination and cooperation. The ability to recognize others with shared norms or behaviors is thus assumed to be under selection. As a medium of communication, human art might reflect fitness-relevant information on shared norms and behaviors of other individuals thus facilitating successful coordination and cooperation. Distinctive styles or patterns of artistic design could signify migration history, different groups with a shared interaction history due to spatial proximity, as well as individual-level expertise and preferences. In addition, cultural boundaries may be even more pronounced in a highly diverse and socially stratified society. In the current study, we focus on a large corpus of an artistic tradition called kolam that is produced by women from Tamil Nadu in South India (N = 3, 139 kolam drawings from 192 women) to test whether stylistic variations in art can be mapped onto caste boundaries, migration and neighborhoods. Since the kolam art system with its sequential drawing decisions can be described by a Markov process, we characterize variation in styles of art due to different facets of an artist's identity and the group affiliations, via hierarchical Bayesian statistical models. Our results reveal that stylistic variations in kolam art only weakly map onto caste boundaries, neighborhoods, and regional origin. In fact, stylistic variations or patterns in art are dominated by artist-level variation and artist expertise. Our results illustrate that although art can be a medium of communication, it is not necessarily marked by group affiliation. Rather, artistic behavior in this context seems to be primarily a behavioral domain within which individuals carve out a unique niche for themselves to differentiate themselves from others. Our findings inform discussions on the evolutionary role of art for group coordination by encouraging researchers to use systematic methods to measure the mapping between specific objects or styles onto groups.

Diversity, Dissent and Representation: Lessons From The First Minority Judge in the Israeli Supreme Court

This paper seeks to enrich existing empirical research on substantive representation in the judicial system by exploring a case study of the Honorable Justice (retired) Salim Joubran, the first ethnic-minority judge appointed to the Supreme Court of Israel. By employing a dual methodology of qualitative discourse analysis and dissenting quantitative studies, the study investigates when, why and how he dissented in controversial cases, which are defined as cases that resulted in non-unanimous votes. The study shows that a quantitative study on dissenting opinions of a minority judge alone did not provide comprehensive conclusions. The complementary qualitative discourse analysis shows that in cases that challenged state actions that impacted his social group, Joubran employed distinct strategies and reasoning that are akin to feminist judgments approach. Hence, the study adds to existing research on judicial diversity indicating that women and ethnic minorities judges not only share common challenges but might also operate similar reasoning strategies. In light of these insights, the study calls for employing the combined qualitative and quantitative methodology on examining judgments focusing on dissenting opinions of women and ethnic minority judges as it offers a complex understanding of substantive representation and provides answers regarding the socio-legal effects of judgments group affiliation on.

Motivated to blend in: Social anxiety and information sharing

Sharing information is ubiquitous in human societies and has a major impact on individual and group decision-making. The content of the information people share and the style in which they do so are shaped by their social goals, such as seek to gain influence or to signal group affiliation. Here we suggest that the balance between information-sharing goals shifts along a social anxiety dimension. We begin by demonstrating that similarity to others drive activity in the brain’s valuation system even in a competitive advice-taking task. Then, in three behavioral experiments, we show that social anxiety levels are related to the tendency to give advice resembling that given by rival advisers and to refrain from status-seeking behavior. Social anxiety was also associated with negative social comparisons with rival advisers. Our findings highlight the role of competing social goals in shaping information sharing and t the spread of extreme views.

Altered functional connectivity in adolescent anorexia nervosa is related to age and cortical thickness

Introduction Functional networks develop throughout adolescence when anorexia nervosa (AN) normally debuts. In AN, cerebral structural alterations are found in most brain regions and may be related to the observed functional brain changes. Few studies have investigated the functional networks of the brain in adolescent AN patients.. The aim of this explorative study was to investigate multiple functional networks in adolescent AN patients compared to healthy age-matched controls (HC) and the relationship with age, eating disorder symptoms and structural alterations. Methods Included were 29 female inpatients with restrictive AN, and 27 HC. All participants were between the ages of 12 to 18 years. Independent component analysis (ICA) identified 21 functional networks that were analyzed with multivariate and univariate analyses of components and group affiliation (AN vs HC). Age, age × group interaction and AN symptoms were included as covariates. Follow-up correlational analyses of selected components and structural measures (cortical thickness and subcortical volume) were carried out. Results Decreased functional connectivity (FC) in AN patients was found in one cortical network, involving mainly the precuneus, and identified as a default mode network (DMN). Cortical thickness in the precuneus was significantly correlated with functional connectivity in this network. Significant group differences were also found in two subcortical networks involving mainly the hippocampus and the amygdala respectively, and a significant interaction effect of age and group was found in both these networks. There were no significant associations between FC and the clinical measures used in the study. Conclusion The findings from the present study may imply that functional alterations are related to structural alterations in selected regions and that the restricted food intake in AN patients disrupt normal age-related development of functional networks involving the amygdala and hippocampus.