Pathogen Threat and In-group Cooperation.

Hirotaka Imada,Nobuhiro Mifune

doi:10.3389/fpsyg.2021.678188

Hirotaka Imada, Nobuhiro Mifune

Open Access

https://doi.org/10.3389/fpsyg.2021.678188

Copy DOI

Abstract

Disease-causing parasites and pathogens play a pivotal role in intergroup behavior. Previous studies have suggested that the selection pressure posed by pathogen threat has resulted in in-group assortative sociality, including xenophobia and in-group favoritism. While the current literature has collated numerous studies on the former, strikingly, there has not been much research on the relationship between pathogen threat and in-group cooperation. Drawing upon prior studies on the function of the behavioral immune system (BIS), we argued that the BIS might facilitate cooperation with in-group members as a reactive behavioral immune response to pathogen threat. More specifically, we held that individuals might utilize cooperative behavior to ensure that they can receive social support when they have contracted an infectious disease. We reviewed existing findings pertaining to the potential role of the BIS in in-group cooperation and discussed directions for future studies.

Highlights

Reviewed by: Randy Thornhill, University of New Mexico, United States Angelo Romano, University of Turin, Italy
Drawing upon prior studies on the function of the behavioral immune system (BIS), we argued that the BIS might facilitate cooperation with in-group members as a reactive behavioral immune response to pathogen threat
There have been several studies showing that the BIS would rather reduce in-group cooperation under pathogen threat; Wu and colleagues have claimed that when in-group members are perceived to be primary sources of infection, the BIS encourages individuals to avoid and develop negative in-group attitudes (Wu et al, 2015, 2019)

Summary

Introduction

Reviewed by: Randy Thornhill, University of New Mexico, United States Angelo Romano, University of Turin, Italy. Drawing upon prior studies on the function of the behavioral immune system (BIS), we argued that the BIS might facilitate cooperation with in-group members as a reactive behavioral immune response to pathogen threat.

Results

Conclusion