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Title: Decoding the view expectation during learned maze navigation from human fronto-parietal network
Authors: Shikauchi, Yumi
Ishii, Shin  kyouindb  KAKEN_id
Author's alias: 鹿内, 友美
石井, 信
Issue Date: 3-Dec-2015
Publisher: Nature Publishing Group
Journal title: Scientific Reports
Volume: 5
Thesis number: 17648
Abstract: Humans use external cues and prior knowledge about the environment to monitor their positions during spatial navigation. View expectation is essential for correlating scene views with a cognitive map. To determine how the brain performs view expectation during spatial navigation, we applied a multiple parallel decoding technique to functional magnetic resonance imaging (fMRI) when human participants performed scene choice tasks in learned maze navigation environments. We decoded participants’ view expectation from fMRI signals in parietal and medial prefrontal cortices, whereas activity patterns in occipital cortex represented various types of external cues. The decoder’s output reflected participants’ expectations even when they were wrong, corresponding to subjective beliefs opposed to objective reality. Thus, view expectation is subjectively represented in human brain, and the fronto-parietal network is involved in integrating external cues and prior knowledge during spatial navigation.
Description: 脳活動から予測したシーンを解読 -予測の間違い「思い込み」も明るみに-. 京都大学プレスリリース. 2015-12-04.
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
URI: http://hdl.handle.net/2433/202079
DOI(Published Version): 10.1038/srep17648
Related Link: http://www.kyoto-u.ac.jp/ja/research/research_results/2015/151203_1.html
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