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Robust and distributed neural representation of action values

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Title
Robust and distributed neural representation of action values
Author(s)
Eun Ju Shin; Yunsil Jang; Soyoun Kim; Kim, Hoseok; Cai, Xinying; Lee, Hyunjung; Jung Hoon Sul; Lee, Sung-Hyun; Chung, Yeonseung; Lee, Daeyeol; Min Whan Jung
Publication Date
2021-04
Journal
eLife, v.10
Publisher
eLife Sciences Publications Ltd
Abstract
© Shin et al. Studies in rats, monkeys, and humans have found action-value signals in multiple regions of the brain. These findings suggest that action-value signals encoded in these brain structures bias choices toward higher expected rewards. However, previous estimates of action-value signals might have been inflated by serial correlations in neural activity and also by activity related to other decision variables. Here, we applied several statistical tests based on permutation and surrogate data to analyze neural activity recorded from the striatum, frontal cortex, and hippocampus. The results show that previously identified action-value signals in these brain areas cannot be entirely accounted for by concurrent serial correlations in neural activity and action value. We also found that neural activity related to action value is intermixed with signals related to other decision variables. Our findings provide strong evidence for broadly distributed neural signals related to action value throughout the brain.
URI
https://pr.ibs.re.kr/handle/8788114/9727
DOI
10.7554/ELIFE.53045
ISSN
2050-084X
Appears in Collections:
Center for Synaptic Brain Dysfunctions(시냅스 뇌질환 연구단) > 1. Journal Papers (저널논문)
Center for Neuroscience Imaging Research (뇌과학 이미징 연구단) > 1. Journal Papers (저널논문)
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