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.
Monfils, Marie-H.
中科院分区:
心理学3区
文献类型:
--
作者:
Bruchey, Aleksandra K.;Jones, Carolyn E.;Monfils, Marie-H.

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在恐惧条件作用(例如,通过将音调与电击配对)之后,记忆提取通常会导致恐惧表达(例如,冻结到音调)。在这里,我们研究了条件性恐惧记忆提取对天真的笼子伴侣对条件性刺激的行为的影响。我们发现,在笼友在场的情况下,暴露于一种新音调的大鼠在第二天选择性地对刺激表现出更多的冰冻(恐惧条件反射副反应)。此外,在将语气与轻微电击配对之前经历的恐惧条件反射在第二天呈现该语气时增加了冰冻。我们的结果表明,在记忆恢复过程中,对刺激的恐惧可以通过社交途径传递给笼友。这些发现可能会对恐惧症模型产生影响。
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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