Fear conditioning by-proxy: social transmission of fear during memory retrieval.
Fear conditioning by-proxy: social transmission of fear during memory retrieval.
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DOI:
10.1016/j.bbr.2010.04.047
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发表时间:
2010-12-06
影响因子:
2.7
通讯作者:
Monfils, Marie-H.
中科院分区:
文献类型:
--
作者:
Bruchey, Aleksandra K.;Jones, Carolyn E.;Monfils, Marie-H.
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 naïve 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.
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