Transforming the Concept of Memory Reactivation.
Transforming the Concept of Memory Reactivation.
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DOI:
10.1016/j.tins.2020.09.006
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发表时间:
2020-12
影响因子:
15.9
通讯作者:
Kuhl BA
中科院分区:
文献类型:
--
作者:
Favila SE;Lee H;Kuhl BA
Reactivation refers to the phenomenon wherein patterns of neural activity expressed during perceptual experience are re-expressed at a later time—a putative neural marker of memory. Reactivation of perceptual content has been observed across many cortical areas and correlates with objective and subjective expressions of memory in humans. However, because reactivation emphasizes similarities between perceptual and memory-based representations, it obscures differences in how perceptual events and memories are represented. Here, we highlight recent evidence of systematic differences in how (and where) perceptual events and memories are represented in the brain. We argue that neural representations of memories are best thought of as spatially transformed versions of perceptual representations. We consider why spatial transformations occur and identify critical questions for future research.
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