Imprinting and recalling cortical ensembles
Author(s) -
Luis CarrilloReid,
Weijian Yang,
Yuki Bando,
Darcy S. Peterka,
Rafael Yuste
Publication year - 2016
Publication title -
science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 12.556
H-Index - 1186
eISSN - 1095-9203
pISSN - 0036-8075
DOI - 10.1126/science.aaf7560
Subject(s) - optogenetics , neuroscience , hebbian theory , biological neural network , neuroplasticity , cortical neurons , visual cortex , premovement neuronal activity , imprinting (psychology) , neuronal circuits , nerve net , cortex (anatomy) , biology , psychology , computer science , artificial neural network , artificial intelligence , biochemistry , gene
Neuronal ensembles are coactive groups of neurons that may represent building blocks of cortical circuits. These ensembles could be formed by Hebbian plasticity, whereby synapses between coactive neurons are strengthened. Here we report that repetitive activation with two-photon optogenetics of neuronal populations from ensembles in the visual cortex of awake mice builds neuronal ensembles that recur spontaneously after being imprinted and do not disrupt preexisting ones. Moreover, imprinted ensembles can be recalled by single- cell stimulation and remain coactive on consecutive days. Our results demonstrate the persistent reconfiguration of cortical circuits by two-photon optogenetics into neuronal ensembles that can perform pattern completion.
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