期刊
EVOLUTION AND HUMAN BEHAVIOR
卷 39, 期 1, 页码 67-75出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.evolhumbehav.2017.10.001
关键词
Cultural transmission; Rumors; Threat detection; Error management; Cultural beliefs; Negativity bias
Many rumors convey information about potential danger, even when these dangers are very unlikely. In four studies, we examine whether micro-processes of cultural transmission explain the spread of threat-related information. Three studies using transmission chain protocols suggest a) that there is indeed a preference for the deliberate transmission of threat-related information over other material, b) that it is not caused by a general negativity or emotionality bias, and c) that it is not eliminated when threats are presented as very unlikely. A forced-choice study on similar material shows the same preference when participants have to select information to acquire rather than transmit. So the cultural success of threat-related material may be explained by transmission biases, rooted in evolved threat-detection and error-management systems, that affect both supply and demand of information. (C) 2017 Elsevier Inc. All rights reserved.
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