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Title: Ensemble cortical responses to rival visual stimuli: Effect of monocular transient
Author: Wen, Yunqing ; Zhang, Qingfang
Source: BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Issued Date: 2009
Volume: 380, Issue:1, Pages:105-110
Keyword: Binocular rivalry ; VSD imaging ; BINOCULAR-RIVALRY ; NEGATIVE AFTERIMAGES ; TRAVELING-WAVES ; CORTEX ; SUPPRESSION ; ADAPTATION ; PERCEPTION ; HIERARCHY ; VISION ; FLASH
Subject: Biochemistry & Molecular Biology ; Biophysics
Corresponding Author: Wen, YQ (reprint author), Chinese Acad Sci, Inst Neurosci, 320 Yue Yang Rd, Shanghai 200031, Peoples R China,wenyq@ion.ac.cn
English Abstract: Binocular rivalry is a fascinating perceptual phenomenon that has been characterized extensively at the psychophysical level. However, the Underlying neural mechanism remains poorly understood. In particular, the role of the early Visual pathway remains controversial. In this study, we used voltage-sensitive dye imaging to measure the spatiotemporal activity patterns in cat area 18 evoked by dichoptic orthogonal grating stimuli. We found that after several seconds of monocular stimulation With an oriented grating, an orthogonal stimulus to the other eye evoked a reversal of the cortical response pattern, which may contribute to flash Suppression in perception. Furthermore, after several seconds of rival binocular stimulation with unequal contrasts, transient increase in the contrast of the weak stimulus evoked a long-lasting cortical response. This transient-triggered response could Contribute to the perceptual switch during binocular rivalry. Together, these results point to a significant contribution of early visual cortex to transient-triggered switch in perceptual dominance. (C) 2009 Elsevier Inc. All rights reserved.
Indexed Type: sci
Language: 英语
Content Type: 期刊论文
URI: http://ir.sibs.ac.cn/handle/331001/1675
Appears in Collections:神经所(总)_期刊论文

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Wen, Yunqing; Zhang, Qingfang.Ensemble cortical responses to rival visual stimuli: Effect of monocular transient,BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS,2009,380(1):105-110
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