期刊
BEHAVIOURAL BRAIN RESEARCH
卷 214, 期 1, 页码 80-84出版社
ELSEVIER
DOI: 10.1016/j.bbr.2010.04.047
关键词
Social transmission of fear; Fear conditioning; Memory retrieval; Observational learning
资金
- NIH [R21 MH086805]
After fear conditioning (e.g., by pairing a tone to a shock), memory retrieval typically leads to fear expression (e.g., freezing to the tone). Here, we examined the effect of a conditioned rat's fear memory retrieval on a naive cage-mate's behavior to the conditioned stimulus. We show that rats exposed to a novel tone in the presence of a cage-mate previously conditioned to that same tone selectively showed increased freezing to the stimulus the next day (fear conditioning by-proxy). In addition, fear conditioning by-proxy experienced prior to pairing the tone to a mild shock increased freezing during presentation of that tone the next day. Our results suggest that, during memory retrieval, fear of a stimulus can be socially transmitted to a cage-mate. These findings may have implications for models of phobias. (C) 2010 Elsevier B.V. All rights reserved.
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