Geometry of sequence working memory in macaque prefrontal cortex
Geometry of sequence working memory in macaque prefrontal cortex
复制标题
猕猴前额叶皮层序列工作记忆的几何结构
DOI:
10.1126/science.abm0204
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发表时间:
2022-02
期刊:
影响因子:
56.9
通讯作者:
Liping Wang
中科院分区:
文献类型:
--
作者:
Yang Xie;Peiyao Hu;Junru Li;Jingwen Chen;Weibin Song;Xiao-Jing Wang;Tianming Yang;Stanislas Dehaene;Shiming Tang;Bin Min;Liping Wang
How the brain stores a sequence in memory remains largely unknown. We investigated the neural code underlying sequence working memory using two-photon calcium imaging to record thousands of neurons in the prefrontal cortex of macaque monkeys memorizing and then reproducing a sequence of locations after a delay. We discovered a regular geometrical organization: The high-dimensional neural state space during the delay could be decomposed into a sum of low-dimensional subspaces, each storing the spatial location at a given ordinal rank, which could be generalized to novel sequences and explain monkey behavior. The rank subspaces were distributed across large overlapping neural groups, and the integration of ordinal and spatial information occurred at the collective level rather than within single neurons. Thus, a simple representational geometry underlies sequence working memory.
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影响因子:
64.8
作者:
通讯作者:
--
DOI:
10.1016/j.cub.2018.04.047
发表时间:
2018-06-18
期刊:
Current biology : CB
影响因子:
--
作者:
Jiang X;Long T;Cao W;Li J;Dehaene S;Wang L
通讯作者:
Wang L
影响因子:
16.2
作者:
Lisman JE;Jensen O
通讯作者:
Jensen O
影响因子:
25
作者:
Wang J;Narain D;Hosseini EA;Jazayeri M
通讯作者:
Jazayeri M
影响因子:
3.2
作者:
Pouget, A;Sejnowski, TJ
通讯作者:
Sejnowski, TJ