不可见刺激诱发双眼竞争
其他题名Binocular Rivalry from Invisible Patterns
Jinyou Zou; Sheng He; Peng Zhang
2016
会议名称2016年第一届北京视觉科学会议
会议日期2016-07
会议地点北京
会议主办者中国科学院心理研究所
其他摘要PURPOSE: Binocular rivalry arises when incompatible images are presented one to each eye. If the two eyes’ con?icting information were invisible with identical perceptual interpretations, does rivalry competition still occur? The current study investigated whether binocular rivalry can be induced from con?icting but invisible spatial patterns.
METHODS & RESULTS: A chromatic grating counter-phase ?ickering at 30 Hz appeared uniform, but produced signi?cant TAE and orientation-selective adaptation. The invisible pattern also generated significant BOLD activities in the early visual cortex, with minimal response in the parietal and frontal cortical areas. A monocularly presented invisible chromatic grating, compared to perceptually matched uniform stimuli, enhanced the rivalry competition with a low contrast visible grating presented to the fellow eye. Furthermore, switching from a uniform ?eld to a perceptually matched invisible chromatic grating produced interocular suppression at about 200 ms following the onset of the invisible grating. Experiments using briefly presented monocular probes revealed evidence for sustained rivalry competition between two invisible gratings during continuous dichoptic presentations.
CONCLUSIONS: These findings indicate that even without visible interocular conflict, and with minimal engagement of fronto-parietal cortex and consciousness related top-down feedbacks, perceptually identical patterns with invisible con?ict features produce rivalry competition in the early visual cortex.
关键词Binocular rivalry Awareness Visual Cortex
学科领域感知觉心理学
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收录类别其他
语种英语
文献类型会议论文
条目标识符http://ir.psych.ac.cn/handle/311026/20853
专题心理所主办学术会议_2016年第一届北京视觉科学会议_会议摘要
作者单位1.State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
2.Department of Psychology, University of Minnesota, Minneapolis, Minnesota, 55414, USA
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Jinyou Zou,Sheng He,Peng Zhang. 不可见刺激诱发双眼竞争[C]. 见:2016年第一届北京视觉科学会议. 北京. 2016-07.http://vision.csp.escience.cn/dct/page/1.
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