Intrinsically organized network for face perception during the resting state

NEUROSCIENCE LETTERS

卷:454

Article

Tian, Jie^1,2  Liu, Jiangang³  Li, Jun²  Lee, Kang⁴ 

[1] Chinese Acad Sci, Inst Automat, Med Image Proc Grp, Key Lab Complex Syst & Intelligence Sci,Grad Sch, Beijing 100190, Peoples R China

[2] Xidian Univ, Sch Elect Engn, Life Sci Res Ctr, Xian 710071, Shaanxi, Peoples R China

[3] Beijing Jiaotong Univ, Sch Comp & Informat Technol, Beijing 1000441, Peoples R China

[4] Univ Toronto, Inst Child Study, Toronto, ON, Canada

关键词: Resting-state;    Face processing;    Core and extended networks;    fMRI;   

DOI  :  10.1016/j.neulet.2009.02.054

来源: Elsevier

【 摘 要 】

We investigated 0.01-0.08 Hz low-frequency fluctuations of BOLD-fMRI signals in the face and object-responsive regions during the resting-state and during face or object viewing tasks. By comparing the effects of the face-responsive regions of interest with those of the object-responsive regions of interest, we observed a distributed cortical network of face perception during the resting-state among posterior fusiform gyrus, inferior occipital gyrus, and superior temporal sulcus. This network was also significantly activated during the face perception task. The face perception task also activated additional areas in the frontal and parietal regions. Our results suggest that the core but not the extended network for face processing is already in some form of activation during the resting-state. A possible function of the resting-state face perception network is perhaps to prepare the brain to process faces that individuals are highly likely to encounter in their environment. (C) 2009 Elsevier Ireland Ltd. All rights reserved.

【 授权许可】

Free