Neural substrates participating in acquisition of facial familiarity: an fMRI study

Material type: 文書・図像類

Author: KOSAKA, Hほか

Publisher: Elsevier

Publication date: 2003-11

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Note (General)：: The amygdala is related to recognition of faces and emotions, and functional magnetic resonance imaging (fMRI) studies have reported that the amygdala...

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Material Type: 文書・図像類
Title: Neural substrates participating in acquisition of facial familiarity: an fMRI study
Author/Editor: KOSAKA, H
OMORI, M
IIDAKA, T
MURATA, T
SHIMOYAMA, T
OKADA, T
SADATO, N
YONEKURA, Y
WADA, Y
Author Heading: KOSAKA, H
OMORI, M
IIDAKA, T
MURATA, T
SHIMOYAMA, T
OKADA, T
SADATO, N
YONEKURA, Y
WADA, Y
Publication, Distribution, etc.: Elsevier
Publication Date: 2003-11
Publication Date (W3CDTF): 2003-11
Periodical title: NeuroImage
No. or year of volume/issue: 20 3
Volume: 20
Issue: 3
Pages: 1734-1742
ISSN (Periodical Title): ISSN : 1053-8119
Text Language Code: eng
Subject Heading: FMRI
Familiarity
Posterior cingulate cortex
Amygdala
Habituation
Face
Target Audience: 一般
Note (General): The amygdala is related to recognition of faces and emotions, and functional magnetic resonance imaging (fMRI) studies have reported that the amygdala is habituated over time with repetition of facial stimuli. When subjects are presented repeatedly with unfamiliar faces, they come to gradually recognize the unfamiliar faces as familiar. To investigate the brain areas participating in the acquisition of familiarity to repeatedly presented unfamiliar faces, we conducted an fMRI study in 16 healthy subjects. During the task periods, the subjects were instructed to see presented unfamiliar faces repeatedly and to judge whether the face was male or female or whether the face had emotional valences. The experiment consisted of nine sessions. To clarify the brain areas that showed increasing or decreasing activation as the experimental session proceeded, we analyzed the fMRI data using specified linear covariates in the face recognition task from the first session to the ninth session. Imaging data were investigated on a voxel-by-voxel basis for single-group analysis according to the random effect model using Statistical Parametric Mapping. The bilateral posterior cingulate cortices showed significant increases in activity as the experimental sessions proceeded, while the activation in the right amygdala and the left medial fusiform gyrus decreased. Thus, the posterior cingulate cortex may play an important role in the acquisition of facial familiarity.
Access Restrictions: 限定公開
Related Material (DOI): 10.1016/S1053-8119(03)00447-6
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ