期刊
EVOLUTION AND HUMAN BEHAVIOR
卷 39, 期 3, 页码 355-363出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.evolhumbehav.2018.03.003
关键词
Biological reasoning; Contagion; Contamination; Disgust; Folkbiology; Pathogen avoidance; Small-scale societies
资金
- University of Pennsylvania
- John Templeton Foundation [40102]
- ESRC (Economic and Social Research Council) Large Grant [REF RES-060-25-0085]
The phenomenon of magical contagion - the unobserved passage of properties between entities that come into physical contact - was described by anthropologists over a century ago, yet questions remain about its origin, function, and universality. Contagion sensitivity, along with the emotion of disgust, has been proposed to be part of a biologically-evolved system designed to reduce exposure to pathogens by increasing the avoidance of contaminated objects. Yet this phenomenon has not been studied using systematic psychological comparison outside of industrialized populations. Here we document contagion sensitivity in two culturally, geographically, and economically distinct populations with little exposure to Western biomedicine and formal education: the Hadza hunter-gatherers of Tanzania and Tannese subsistence-agriculturalists of Vanuatu. In both populations, a majority of individuals rejected familiar and palatable foods when contaminating items touched the food but were subsequently removed. The Tannese children in our study showed a similar response, consistent with previous research with Western children. Our data support the proposal that contagion sensitivity is universal in human populations. (C) 2018 Elsevier Inc. All rights reserved.
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