期刊
PSYCHONEUROENDOCRINOLOGY
卷 31, 期 7, 页码 859-866出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.psyneuen.2006.04.002
关键词
testosterone; empathy; aggression; facial electromyography; mimicry; psychopathy
Although high baseline testosterone levels correlate with tow empathy, there is no causal evidence for this association in humans. The present study tested the causality of this relationship by manipulating testosterone levels in a double-blind placebo controlled crossover design. 20 healthy female participants received either a sublingual administration of a single dose of testosterone or placebo on 2 days and were tested 4 h after administration. Because research has shown that facial expression mimicry is a non-obtrusive index of empathy, facial electromyography was measured in response to dynamic facial expressions of happy and angry faces. Results showed that testosterone generally decreased facial mimicry. These findings are consistent with models that assign a critical role to mimicry in the ability to develop and communicate empathy towards conspecifics, and provide a potential causal mechanism of effects of testosterone on empathy. (c) 2006 Elsevier Ltd. All rights reserved.
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