The selectivity of aversive memory reconsolidation and extinction processes depends on the initial encoding of the Pavlovian association.

The selectivity of aversive memory reconsolidation and extinction processes depends on the initial encoding of the Pavlovian association.
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DOI:
10.1101/lm.031609.113
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发表时间:
2013-11-19
期刊:
Learning & memory (Cold Spring Harbor, N.Y.)
影响因子:
--
通讯作者:
LeDoux JE
LeDoux JE
中科院分区:
其他
文献类型:
--
作者:
Debiec J;Diaz-Mataix L;Bush DE;Doyère V;LeDoux JE

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在再巩固研究中,记忆通常是通过暴露于单一条件刺激(CS)来检索的。我们之前已经证明,再巩固过程是CS选择性的,这表明通过CS暴露获得的记忆是离散的,并且是单独再巩固的。在这里,我们使用一种复合刺激,其中两种不同的CSs同时与相同的厌恶非条件刺激(US)配对,我们在大鼠中发现,重新暴露于复合CS的一个组成部分会触发另一个组成部分的消失或重新巩固。这表明原始训练条件在记忆提取和再巩固中起着至关重要的作用。
In reconsolidation studies, memories are typically retrieved by an exposure to a single conditioned stimulus (CS). We have previously demonstrated that reconsolidation processes are CS-selective, suggesting that memories retrieved by the CS exposure are discrete and reconsolidate separately. Here, using a compound stimulus in which two distinct CSs are concomitantly paired with the same aversive unconditioned stimulus (US), we show in rats that reexposure to one of the components of the compound CS triggers extinction or reconsolidation of the other component. This suggests that the original training conditions play a critical role in memory retrieval and reconsolidation.
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