An evolutionary approach to stigmatization suggests that disease-avoidance processes contribute to some instances of social exclusion. Disease-avoidance processes are over-inclusive, targeting even non-threatening individuals who display cues of substandard health. We investigated whether such cues motivate avoidance of physical contact in particular. In Studies 1 and 2, targets with disease (e.g., leprosy) or atypical morphologies (e.g., amputated leg, obesity) were found to arouse differentially heightened discomfort with physical (versus nonphysical) contact, whereas a criminal target (stigmatized for disease-irrelevant reasons) was found to arouse elevated discomfort for both types of contact. Study 3 used a between-subjects design that eliminated the influence of extraneous factors. A diseased target was found to arouse differentially heightened discomfort with physical (versus nonphysical) contact, and to do so more strongly than any other type of target.
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http://dx.doi.org/10.1080/00224545.2012.721812 | DOI Listing |
Memory
January 2025
William James Center for Research, Department of Education and Psychology, University of Aveiro, Aveiro, Portugal.
Previous research has revealed enhanced free recall for neutral items previously associated with disease-causing agents, compared to when they are associated with neutral information; this has been termed the contamination effect. However, it remains unknown whether this effect extends to recognition memory and, if so, on what processes it would rely (i.e.
View Article and Find Full Text PDFAm J Orthopsychiatry
July 2024
Department of Psychology, Vanderbilt University.
Although political conservatism has been associated with xenophobia, the processes that may explain this link during the COVID-19 pandemic are unclear. Xenophobia does increase during infectious disease outbreaks, suggesting an adaptation for those concerned about disease threats. Given that disgust facilitates disease avoidance, the present study examined the extent to which disgust proneness (DP) moderated the association between political conservatism and xenophobia during the pandemic.
View Article and Find Full Text PDFJ Gen Psychol
December 2024
Department of Psychology, Ege University, Izmir, Turkey.
A considerable amount of research has revealed that there exists an evolutionary mismatch between ancestral environments and conditions following the rise of agriculture regarding the contact between humans and animal reservoirs of infectious diseases. Based on this evolutionary mismatch framework, we examined whether visual attention exhibits adaptive attunement toward animal targets' pathogenicity. Consistent with our predictions, faces bearing heuristic infection cues held attention to a greater extent than did animal vectors of zoonotic infectious diseases.
View Article and Find Full Text PDFAm Psychol
March 2024
Department of Human Systems Engineering, Arizona State University.
How do natural changes in disease avoidance motivation shape thoughts about and behaviors toward ingroup and outgroup members? During the COVID-19 pandemic, political party affiliation has been a strong predictor in the United States of COVID-19-related opinions, attitudes, and behaviors. Using a six-wave longitudinal panel survey of representative Americans (on Prolific, = 1,124, from April 2020 to February 2021), we explored how naturally occurring changes across time in both risks of COVID-19 infection and people's disease avoidance motivation shaped thoughts about and behaviors toward Republicans and Democrats (e.g.
View Article and Find Full Text PDFPerspect Psychol Sci
January 2025
Department of Zoology, Charles University.
Although chemical signaling is an essential mode of communication in most vertebrates, it has long been viewed as having negligible effects in humans. However, a growing body of evidence shows that the sense of smell affects human behavior in social contexts ranging from affiliation and parenting to disease avoidance and social threat. This article aims to (a) introduce research on human chemical communication in the historical context of the behavioral sciences; (b) provide a balanced overview of recent advances that describe individual differences in the emission of semiochemicals and the neural mechanisms underpinning their perception, that together demonstrate communicative function; and (c) propose directions for future research toward unraveling the molecular principles involved and understanding the variability in the generation, transmission, and reception of chemical signals in increasingly ecologically valid conditions.
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