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记忆编码和提取中的神经激活模式再现∗

肖筱茜 叶智方 郑丽 薛贵

北京师范大学学报(自然科学版)2016,Vol.52Issue(6):765-772,8.
北京师范大学学报(自然科学版)2016,Vol.52Issue(6):765-772,8.DOI:10.16360/j.cnki.jbnuns.2016.06.014

记忆编码和提取中的神经激活模式再现∗

Pattern reinstatement during memory encoding and retrieval

肖筱茜 1叶智方 1郑丽 1薛贵1

作者信息

  • 1. 北京师范大学认知神经科学与学习国家重点实验室,北京师范大学IDG/麦戈文脑科学研究院,100875,北京
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摘要

Abstract

Episodic memory enables humans to vividly re-experience past events via mental time travel.As proposed by most theoretical and computational models,successful retrieval is accompanied by reinstatement of representation during encoding.The current study focused on multiple voxel pattern analysis summarizes evidence supporting this hypothesis.It was found that successful retrieval was companied by category and item-specific neural pattern reinstatement.Neural pattern reinstatement could also be triggered by repeated studies of the same item or similar items,and the degree of reinstatement was associated with subsequent memory performance.Spontaneous reinstatement was found both in sleep and during rest when no attention was paid, this reinstatement was also associated with late memory.Base on these observations,we also examined the nature of neural pattern reinstatement and the role of frontal cortex and hippocampus in this process.Finally, we suggest possible ways to further study pattern reinstatement.

关键词

情景记忆/神经激活模式再现/表征相似性分析

Key words

episodic memory/pattern reinstatement/representational similarity analysis

分类

社会科学

引用本文复制引用

肖筱茜,叶智方,郑丽,薛贵..记忆编码和提取中的神经激活模式再现∗[J].北京师范大学学报(自然科学版),2016,52(6):765-772,8.

基金项目

国家自然科学基金资助项目(31130025) (31130025)

科技部“973”资助项目(2014CB846102) (2014CB846102)

高等学校学科创新引智计划资助项目(B07008) (B07008)

自然科学基金创新团队资助项目(31521063) (31521063)

北京师范大学学报(自然科学版)

OA北大核心CSCDCSTPCD

0476-0301

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