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 | |
发表期刊 | BIOMEDICAL OPTICS EXPRESS |
2017-04-01 | |
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 |
DOI | 10.1364/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 |
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 |
第一作者单位 | 模式识别国家重点实验室 |
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. |
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