Hemispheric differences in electrical and hemodynamic responses during hemifield visual stimulation with graded contrasts

doi:10.1364/BOE.8.002018

	Hemispheric differences in electrical and hemodynamic responses during hemifield visual stimulation with graded contrasts
	Si, Juanning1,2 ; Zhang, Xin1,2 ; Zhang, Yujin1,2 ; Jiang, Tianzi1,2,3,4,5
刊名	BIOMEDICAL OPTICS EXPRESS
	2017-04-01
卷号	8 期号:4 页码:2018-2035
关键词	Functional Monitoring And Imaging Multiple Imaging Vision-contrast Sensitivity Blood Or Tissue Constituent monitOring.
DOI	10.1364/BOE.8.002018
文献子类	Article
英文摘要	A multimodal neuroimaging technique based on electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS) was used with horizontal hemifield visual stimuli with graded contrasts to investigate the retinotopic mapping more fully as well as to explore hemispheric differences in neuronal activity, the hemodynamic response, and the neurovascular coupling relationship in the visual cortex. The fNIRS results showed the expected activation over the contralateral hemisphere for both the left and right hemifield visual stimulations. However, the EEG results presented a paradoxical lateralization, with the maximal response located over the ipsilateral hemisphere but with the polarity inversed components located over the contralateral hemisphere. Our results suggest that the polarity inversion as well as the latency advantage over the contralateral hemisphere cause the amplitude of the VEP over the contralateral hemisphere to be smaller than that over the ipsilateral hemisphere. Both the neuronal and hemodynamic responses changed logarithmically with the level of contrast in the hemifield visual stimulations. Moreover, the amplitudes and latencies of the visual evoked potentials (VEPs) were linearly correlated with the hemodynamic responses despite differences in the slopes. (C) 2017 Optical Society of America
WOS关键词	NEAR-INFRARED SPECTROSCOPY ; SIMULTANEOUS EEG-FMRI ; DIFFUSE OPTICAL TOMOGRAPHY ; EVOKED-POTENTIALS ; STIMULUS-INTENSITY ; BLOOD OXYGENATION ; EYE DOMINANCE ; BOLD SIGNAL ; CORTEX ; BRAIN
WOS研究方向	Biochemistry & Molecular Biology ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
语种	英语
WOS记录号	WOS:000400499300002
资助机构	National Key Scientific Instrument and Equipment Development Project of China(2012YQ120046) ; National Natural Science Foundation of China(31571003 ; 81501550)
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/15261]
专题	自动化研究所_脑网络组研究中心
作者单位	1.Chinese Acad Sci, Brainnetome Ctr, Inst Automat, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China 3.Univ Elect Sci & Technol China, Sch Life Sci & Technol, Key Lab NeuroInformat, Minist Educ, Chengdu 625014, Peoples R China 4.Chinese Acad Sci, CAS Ctr Excellence Brain Sci, Inst Automat, Beijing 100190, Peoples R China 5.Univ Queensland, Queensland Brain Inst, St Lucia, Qld 4072, Australia
推荐引用方式 GB/T 7714	Si, Juanning,Zhang, Xin,Zhang, Yujin,et al. Hemispheric differences in electrical and hemodynamic responses during hemifield visual stimulation with graded contrasts[J]. BIOMEDICAL OPTICS EXPRESS,2017,8(4):2018-2035.
APA	Si, Juanning,Zhang, Xin,Zhang, Yujin,&Jiang, Tianzi.(2017).Hemispheric differences in electrical and hemodynamic responses during hemifield visual stimulation with graded contrasts.BIOMEDICAL OPTICS EXPRESS,8(4),2018-2035.
MLA	Si, Juanning,et al."Hemispheric differences in electrical and hemodynamic responses during hemifield visual stimulation with graded contrasts".BIOMEDICAL OPTICS EXPRESS 8.4(2017):2018-2035.