Perceptual grouping-dependent lightness processing in human early visual   cortex

doi:10.1167/10.9.4

CORC > 北京大学 > 心理与认知科学学院

	Perceptual grouping-dependent lightness processing in human early visual cortex
	Boyaci, Huseyin ; Fang, Fang ; Murray, Scott O. ; Kersten, Daniel
刊名	journal of vision
	2010
关键词	lightness/brightness perception visual cortex perceptual organization SURFACE COLOR-PERCEPTION PERCEIVED LIGHTNESS FILLING-IN 3-DIMENSIONAL SCENES BRIGHTNESS CONTRAST GRATING INDUCTION LUMINANCE RESPONSES ILLUMINATION ORGANIZATION
DOI	10.1167/10.9.4
英文摘要	Lightness, the perceived relative achromatic reflectance of a surface, depends strongly on the context within which the surface is viewed. Modest changes in the two-dimensional configuration or three-dimensional scene geometry may lead to profound variations in lightness even though the surface luminance remains constant. Despite recent progress, we are far from a complete understanding of how various aspects of spatial context affect lightness processing in the cortex. Here we use a novel stimulus to show that perceptual grouping through occluders can affect lightness. We first report behavioral results showing how lightness across occlusion depends on spatially distant image features, including luminance and contrast. Next using functional magnetic resonance imaging (fMRI) we show that human early visual cortex responds strongly to occlusion-dependent lightness variations with little or no attention. These results suggest that elements of three-dimensional scene interpretation play a role in early cortical processing of lightness.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000281462200005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Ophthalmology; SCI(E); SSCI; 7; ARTICLE; 9; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/396033]
专题	心理与认知科学学院
推荐引用方式 GB/T 7714	Boyaci, Huseyin,Fang, Fang,Murray, Scott O.,et al. Perceptual grouping-dependent lightness processing in human early visual cortex[J]. journal of vision,2010.
APA	Boyaci, Huseyin,Fang, Fang,Murray, Scott O.,&Kersten, Daniel.(2010).Perceptual grouping-dependent lightness processing in human early visual cortex.journal of vision.
MLA	Boyaci, Huseyin,et al."Perceptual grouping-dependent lightness processing in human early visual cortex".journal of vision (2010).