Activation detection in functional near-infrared spectroscopy by wavelet coherence

	Activation detection in functional near-infrared spectroscopy by wavelet coherence
	Zhang, Xin1 ; Yu, Jian 2; Zhao, Ruirui2 ; Xu, Wenting2 ; Niu, Haijing 3; Zhang, Yujin1 ; Zuo, Nianming1,4 ; Jiang, Tianzi1,2,4,5 ; Tianzi Jiang
发表期刊	JOURNAL OF BIOMEDICAL OPTICS
	2015
卷号	20 期号:1 页码:016004
文章类型	Article
摘要	Functional near-infrared spectroscopy (fNIRS) detects hemodynamic responses in the cerebral cortex by transcranial spectroscopy. However, measurements recorded by fNIRS not only consist of the desired hemodynamic response but also consist of a number of physiological noises. Because of these noises, accurately detecting the regions that have an activated hemodynamic response while performing a task is a challenge when analyzing functional activity by fNIRS. In order to better detect the activation, we designed a multiscale analysis based on wavelet coherence. In this method, the experimental paradigm was expressed as a binary signal obtained while either performing or not performing a task. We convolved the signal with the canonical hemodynamic response function to predict a possible response. The wavelet coherence was used to investigate the relationship between the response and the data obtained by fNIRS at each channel. Subsequently, the coherence within a region of interest in the time-frequency domain was summed to evaluate the activation level at each channel. Experiments on both simulated and experimental data demonstrated that the method was effective for detecting activated channels hidden in fNIRS data. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
关键词	Functional Monitoring And Imaging Spectroscopy Image Analysis Physiology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
关键词[WOS]	GENERAL LINEAR-MODEL ; HEMODYNAMIC-RESPONSES ; AUTOREGRESSIVE MODEL ; TIME-SERIES ; 1/F NOISE ; BRAIN ; FNIRS ; NIRS ; MOTION ; ARTIFACTS
收录类别	SCI
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
WOS类目	Biochemical Research Methods ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
WOS记录号	WOS:000350206400013
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/8051
专题	脑图谱与类脑智能实验室_脑网络组研究
通讯作者	Tianzi Jiang
作者单位	1.Chinese Acad Sci, Inst Automat, Brainnetome Ctr, Beijing 100190, Peoples R China 2.Univ Elect Sci & Technol China, Sch Life Sci & Technol, Key Lab NeuroInformat, Minist Educ, Chengdu 610054, Peoples R China 3.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China 4.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China 5.Univ Queensland, Queensland Brain Inst, Brisbane, Qld 4072, Australia
第一作者单位	中国科学院自动化研究所
推荐引用方式 GB/T 7714	Zhang, Xin,Yu, Jian,Zhao, Ruirui,et al. Activation detection in functional near-infrared spectroscopy by wavelet coherence[J]. JOURNAL OF BIOMEDICAL OPTICS,2015,20(1):016004.
APA	Zhang, Xin.,Yu, Jian.,Zhao, Ruirui.,Xu, Wenting.,Niu, Haijing.,...&Tianzi Jiang.(2015).Activation detection in functional near-infrared spectroscopy by wavelet coherence.JOURNAL OF BIOMEDICAL OPTICS,20(1),016004.
MLA	Zhang, Xin,et al."Activation detection in functional near-infrared spectroscopy by wavelet coherence".JOURNAL OF BIOMEDICAL OPTICS 20.1(2015):016004.

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