Flexibility of functional neuronal assemblies supports human memory.
Flexibility of functional neuronal assemblies supports human memory.
复制标题
功能性神经组件的灵活性支持人类记忆。
DOI:
10.1038/s41467-022-33587-0
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发表时间:
2022-10-18
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
Episodic memories, or consciously accessible memories of unique events, represent a key aspect of human cognition. Evidence from rodent models suggests that the neural representation of these complex memories requires cooperative firing of groups of neurons on short time scales, organized by gamma oscillations. These co-firing groups, termed “neuronal assemblies,” represent a fundamental neurophysiological unit supporting memory. Using microelectrode data from neurosurgical patients, we identify neuronal assemblies in the human MTL and show that they exhibit consistent organization in their firing pattern based on gamma phase information. We connect these properties to memory performance across recording sessions. Finally, we describe how human neuronal assemblies flexibly adjust over longer time scales. Our findings provide key evidence linking assemblies to human episodic memory for the first time. Neuronal assemblies remain understudied in human data. Here, the authors show that gamma phase-locked neuronal firing sequences comprise assemblies in human single unit recordings, and their ability to incorporate new neurons over time facilitates memory.
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影响因子:
16.2
作者:
Carr MF;Karlsson MP;Frank LM
通讯作者:
Frank LM
影响因子:
1.2
作者:
Peyrache A;Benchenane K;Khamassi M;Wiener SI;Battaglia FP
通讯作者:
Battaglia FP
影响因子:
16.2
作者:
Lisman JE;Jensen O
通讯作者:
Jensen O
DOI:
10.1126/science.abf3119
发表时间:
2021-04-02
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Fernández-Ruiz A;Oliva A;Soula M;Rocha-Almeida F;Nagy GA;Martin-Vazquez G;Buzsáki G
通讯作者:
Buzsáki G
影响因子:
64.8
作者:
Hainmueller T;Bartos M
通讯作者:
Bartos M