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题名:
Concordance among indices of intrinsic brain function: Insights from inter-individual variation and temporal dynamics
作者: Yang Chaogan(严超赣)1,2,3,4,5,6; Yang, Zhen5,7,8; Colcombe, Stanley J.5; Xi-Nian Zuo(左西年)1,2,3,4; Milham, Michael P.5,8
文章类型: Article
关键词: Resting-state fMRI ; Intrinsic brain activity ; Concordance ; Temporal dynamics ; Inter-individual variation
刊名: SCIENCE BULLETIN
ISSN号: 2095-9273
出版日期: 2017-12-15
卷号: 62, 期号:23, 页码:1572-1584
收录类别: SCI
项目资助者: National Key R&D Program of China(2017YFC1309902) ; National Basic Research Program(2015CB351702) ; Natural Science Foundation of China(81671774 ; Hundred Talents Program of the Chinese Academy of Sciences(Y5CX072006) ; Beijing Municipal Science & Technology Commission(Z161100000216152) ; National Institutes of Health(U01MH099059) ; Child Mind Institute(1FDN2012-1) ; 81630031 ; 81471740 ; 81220108014)
英文摘要:

Various resting-state fMRI (R-fMRI) measures have been developed to characterize intrinsic brain activity. While each of these measures has gained a growing presence in the literature, questions remain regarding the common and unique aspects these indices capture. The present work provided a comprehensive examination of inter-individual variation and intra-individual temporal variation for commonly used measures, including fractional amplitude of low frequency fluctuations, regional homogeneity, voxel-mirrored homotopic connectivity, network centrality and global signal correlation. Regardless of whether examining intra-individual or inter-individual variation, we found that these definitionally distinct R-fMRI indices tend to exhibit a relatively high degree of covariation, which doesn't exist in phase randomized surrogate data. As a measure of intrinsic brain function, concordance for R-fMRI indices was negatively correlated with age across individuals (i.e., concordance among functional indices decreased with age). To understand the functional significance of concordance, we noted that higher concordance was generally associated with higher strengths of R-fMRI indices, regardless of whether looking through the lens of inter-individual (i.e., high vs. low concordance participants) or intra-individual (i.e., high vs. low concordance states identified via temporal dynamic analyses) differences. We also noted a linear increase in functional concordance together with the R-fMRI indices through the scan, which may suggest a decrease in arousal. The current study demonstrated an enriched picture regarding the relationship among the R-fMRI indices, as well as provided new insights in examining dynamic states within and between individuals. (C) 2017 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.

语种: 英语
WOS记录号: WOS:000418003300007
DOI标识: 10.1016/j.scib.2017.09.015
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
关键词[WOS]: RESTING-STATE FMRI ; CONNECTIVITY MRI ; LIFE-SPAN ; DEVELOPMENTAL TRAJECTORIES ; REGIONAL HOMOGENEITY ; VASCULAR REACTIVITY ; ALZHEIMERS-DISEASE ; GLUCOSE-METABOLISM ; SIGNAL AMPLITUDE ; HEAD MOTION
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.psych.ac.cn/handle/311026/22277
Appears in Collections:中国科学院行为科学重点实验室_期刊论文

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作者单位: 1.Inst Psychol, CAS Key Lab Behav Sci, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Dept Psychol, Beijing 100101, Peoples R China
3.Chinese Acad Sci, Inst Psychol, Magnet Resonance Imaging Res Ctr, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Inst Psychol, Ctr Lifespan Innovat Mind & Brain, Beijing, Peoples R China
5.Nathan S Kline Inst Psychiat Res, Orangeburg, NY 10962 USA
6.NYU, Langone Med Ctr, Sch Med, Dept Child & Adolescent Psychiat, New York, NY 10016 USA
7.Univ Penn, Perelman Sch Med, Dept Psychiat, Ctr Neuromodulat Depress & Stress, Philadelphia, PA 19104 USA
8.Child Mind Inst, New York, NY 10022 USA

Recommended Citation:
Yan, Chao-Gan,Yang, Zhen,Colcombe, Stanley J.,et al. Concordance among indices of intrinsic brain function: Insights from inter-individual variation and temporal dynamics[J]. SCIENCE BULLETIN,2017,62(23):1572-1584.
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