A novel method for spatio-temporal pattern analysis of brain fMRI data

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	A novel method for spatio-temporal pattern analysis of brain fMRI data
	Liu, YD ; Zhou, ZT ; Hu, DW ; Yan, LR ; Tan, CL ; Wu, DX ; Yao, SQ ; D. W. Hu
摘要	A novel data processing procedure for fMRI was suggested in this paper, by which spatial and temporal characteristics of stimuli-induced signal dynamic responses can be investigated simultaneously. First the multitaper spectral estimation was utilized to estimate the spectrum of each voxel; the significance of the line frequency components at the interested frequency was tested to detect the task-related cortex areas; the temporal independent component analysis (tICA) was then applied to the activated voxels to obtain stimuli-induced signal dynamic responses. The advantages of this procedure are: few assumptions are needed for the cerebral hemodynamics and spatial distribution of task-related areas, problems which often appear in tICA analysis of fMRI data, such as the lack of stability, reliability and robustness, are overcome by the suggested method.; A novel data processing procedure for fMRI was suggested in this paper, by which spatial and temporal characteristics of stimuli-induced signal dynamic responses can be investigated simultaneously. First the multitaper spectral estimation was utilized to estimate the spectrum of each voxel; the significance of the line frequency components at the interested frequency was tested to detect the task-related cortex areas; the temporal independent component analysis (tICA) was then applied to the activated voxels to obtain stimuli-induced signal dynamic responses. The advantages of this procedure are: few assumptions are needed for the cerebral hemodynamics and spatial distribution of task-related areas, problems which often appear in tICA analysis of fMRI data, such as the lack of stability, reliability and robustness, are overcome by the suggested method.
关键词	functional magnetic resonance imaging (fMRI) temporal independent component analysis (tICA) multitaper spectral analysis (MTM)
学科领域	认知神经科学
	2005-04-01
语种	英语
发表期刊	SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES
ISSN	1009-2757
卷号	48 期号:2 页码:151-160
期刊论文类型	Article
收录类别	SCI
WOS记录号	WOS:000229230300002
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.psych.ac.cn/handle/311026/5133
专题	中国科学院心理研究所回溯数据库(1956-2010)
通讯作者	D. W. Hu
作者单位	1.Natl Univ Def Technol, Coll Mechatron & Automat, Changsha 410073, Peoples R China 2.Ctr S Univ, Xiangya Hosp 2, Dept Radiol, Changsha 410011, Peoples R China 3.Ctr S Univ, Xiangya Hosp 2, Res Ctr Psychol, Changsha 410011, Peoples R China 4.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Liu, YD,Zhou, ZT,Hu, DW,et al. A novel method for spatio-temporal pattern analysis of brain fMRI data[J]. SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES,2005,48(2):151-160.
APA	Liu, YD.,Zhou, ZT.,Hu, DW.,Yan, LR.,Tan, CL.,...&D. W. Hu.(2005).A novel method for spatio-temporal pattern analysis of brain fMRI data.SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES,48(2),151-160.
MLA	Liu, YD,et al."A novel method for spatio-temporal pattern analysis of brain fMRI data".SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES 48.2(2005):151-160.

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