灵长类红色显著性的视觉神经基础
其他题名Red Predominance of Gamma band Power in Macaque V1 and V4
Ye Liu; Jiapeng Yin; Zheyuan Chen; Ian Max Andolina; Wei Wang
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: Our visual world is rich in spectral information, and the evolution of separate L / M cone and resultant L—M opponent channels in catarrhine and some platyrrhine primates is indicative that distinguishing "red" from "green" serves a critical purpose. Psychophysical studies in humans, and electrophysiology in both human and non-human primate visual cortices suggests a red dominance in driving neural responses in comparison to other colors. The purpose of this study is to test if there is a neural basis of red dominance at the level of local ?eld potentials (LFP) and multi-unit activity (MUA).
METHODS: Here we used 16-channel laminar probes to record LFP and MUA across the cortical depth for full-field isoluminant color stimuli in both V1 and V4. We computed band-limited power from the LFP during stimulation induced by seven isoluminant colors (red, orange, yellow, green, cyan, blue, purple). As the gamma (γ) band is commonly assumed to be related to attention and stimulus awareness in visual cortex, we hypothesized that red may di?erentially drive gamma band power during visual perception.
RESULTS: Isoluminant red stimulation induced significantly higher power at both the γ–low (30–50Hz) and γ–high bands (50–100Hz) across all laminar depths in both V1 and V4. Even when recording within V4 color domains whose color preference was other than red, or V4 form domains with little color preference, red still drove a higher γ–band power response.
CONCLUSIONS: Red drives a significantly enhanced γ–band response invariant to color or form domain preferences, which is consistant with the perceptual preference to red shown in other studies perceptually.
关键词Color perception Oscillations Laminar analysis
学科领域感知觉心理学
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语种英语
文献类型会议论文
条目标识符http://ir.psych.ac.cn/handle/311026/20882
专题心理所主办、承办、协办学术会议_2016年第一届北京视觉科学会议_会议摘要
作者单位1.Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Xuhui Dist., Shanghai, China, 200031
2.University of Chinese Academy of Sciences, Shanghai, China, 200031
推荐引用方式
GB/T 7714
Ye Liu,Jiapeng Yin,Zheyuan Chen,等. 灵长类红色显著性的视觉神经基础[C],2016.
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