How does disgust regulate social rejection? a mini-review.

The need to belong is a fundamental aspect of human nature. Over the past two decades, researchers have uncovered many harmful effects of social rejection. However, less work has examined the emotional antecedents to rejection. The purpose of the present article was to explore how disgust--an emotion linked to avoidance and social withdrawal--serves as an important antecedent to social rejection. We argue that disgust affects social rejection through three routes. First, disgust encourages stigmatization, especially of those who exhibit cues of infectious disease. Second, disgust and disease-avoidance give rise to cultural variants (e.g., socially conservative values and assortative sociality), which mitigate social interaction. Third, when the self is perceived as a source of contamination, it promotes shame, which, subsequently, encourages withdrawal from social interaction. Directions for future research are also discussed.

The behavioral immune system and conservatism as predictors of disease-avoidant attitudes during the COVID-19 pandemic.

The COVID-19 pandemic presents a unique opportunity to explore the relationships between the behavioral immune system (BIS), Political Ideology, and disease avoidant attitudes (e.g., attitudes toward vaccination and attitudes about COVID-19). The BIS (e.g., disgust) is believed to be the first line of defense against pathogens and has been linked to socially conservative values. Ironically, however, the BIS has also been associated with anti-vaccination attitudes. In the current study, American participants (N = 139) completed an online survey with self-report measures of the BIS (e.g., disgust sensitivity and perceived infectability), political ideology, COVID-19 attitudes, and anti-vaccination attitudes. Disgust sensitivity was positively correlated with anti-vaccination attitudes but not significantly correlated with attitudes toward COVID-19. Perceived infectability, however, was negatively correlated with anti-vaccination attitudes and positively correlated with anxiety and knowledge about COVID-19. Right-wing authoritarianism and support for Trump were negatively correlated with knowledge and anxiety about COVID-19 and positively correlated with anti-vaccination attitudes.

On the Origin of Shame: Does Shame Emerge From an Evolved Disease-Avoidance Architecture?

Shame and disgust are believed to be evolved psychological solutions to different adaptive challenges. Shame is thought to promote the maintenance of social hierarchies (Gilbert, 1997; Fessler, 2004), whereas disgust is believed to encourage disease avoidance (Curtis et al., 2004; Oaten et al., 2009). Although shame and disgust are often treated as orthogonal emotions, they share some important similarities. Both involve bodily concerns, are described as moral emotions, and encourage avoidance of social interaction. The purpose of the current research was to examine whether shame is uniquely related to disgust and pathogen avoidance. To rule out an association due to the negative valence of both emotions, guilt was also examined. In Study 1, disgust sensitivity and fear of contamination were positively correlated with shame, but not guilt, even after controlling for negative affect. In Study 2, a disgust induction increased shame, but not guilt, for individuals who were sensitive to disgust. The current research provides preliminary evidence for unique relation between shame and disgust.

Does the behavioral immune system prepare females to be religiously conservative and collectivistic?

Previous research has indicated that females are more likely than males to endorse collectivistic values and religious conservatism. The present research investigated an evolutionary explanation for these sex differences. More specifically, the sex differences in social conservatism may be due to variation in the behavioral immune system (BIS). The BIS is a set of psychological mechanisms that are proposed to be evolved solutions to disease threat. Four studies were conducted to examine this evolutionary explanation. In Study 1, BIS measures (e.g., disgust sensitivity) fully mediated sex differences in collectivism. This effect was specific to sexual disgust (Study 2). In Studies 3 and 4, the effect was extended to other forms of social conservatism (i.e., religious conservatism) and measures of the BIS. Together, these results suggest that sex differences in collectivism and religious conservatism may be explained in part by sex differences in the BIS.