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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
2017-04-01
发表期刊BIOMEDICAL OPTICS EXPRESS
卷号8期号:4页码:2018-2035
文章类型Article
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
关键词Functional Monitoring And Imaging Multiple Imaging Vision-contrast Sensitivity Blood Or Tissue Constituent monitOring.
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1364/BOE.8.002018
关键词[WOS]NEAR-INFRARED SPECTROSCOPY ; SIMULTANEOUS EEG-FMRI ; DIFFUSE OPTICAL TOMOGRAPHY ; EVOKED-POTENTIALS ; STIMULUS-INTENSITY ; BLOOD OXYGENATION ; EYE DOMINANCE ; BOLD SIGNAL ; CORTEX ; BRAIN
收录类别SCI
语种英语
项目资助者National Key Scientific Instrument and Equipment Development Project of China(2012YQ120046) ; National Natural Science Foundation of China(31571003 ; 81501550)
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:000400499300002
引用统计
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/15261
专题脑网络组研究中心
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
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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.
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