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Updated: May 25, 2026

Social Threat-Safety Test Uncovers Psychosocial Stress-Related Phenotypes
Published on: December 15, 2023
The evolution and development of human social systems requires more than parasite-stress avoidance explanation
1Department of Psychology, Florida Atlantic University, Boca Raton, FL 33431, USA. jgrotuss@fau.edu
Abstract:
Fincher & Thornhill (F&T) present a model of in-group assortative sociality resulting from differing levels of parasite-stress in differing geographical locations in the United States and the world. Their model, while compelling, overlooks some important issues, such as mutualistic associations with parasites that are beneficial to humans and how some religious practices increase parasite risk.
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