Equivalent Representation of Real and Illusory Contours in Macaque V4

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	Equivalent Representation of Real and Illusory Contours in Macaque V4
	Pan, YX ; Chen, MG ; Yin, JP ; An, X ; Zhang, X ; Lu, YL ; Gong, HL ; Li, W ; Wang, W
刊名	JOURNAL OF NEUROSCIENCE
	2012
卷号	32 期号:20 页码:6760-6770
关键词	MONKEY VISUAL-CORTEX INFERIOR TEMPORAL CORTEX EXTRASTRIATE AREA V4 SHAPE SELECTIVITY FUNCTIONAL ARCHITECTURE MODULAR ORGANIZATION SUBJECTIVE CONTOURS RECEPTIVE-FIELDS STRIATE CORTEX ORIENTATION DISCRIMINATION
ISSN号	0270-6474
通讯作者	Wang, W (reprint author), Mailbox 9,320 Yueyang Rd, Shanghai 200031, Peoples R China.,w.wang@ion.ac.cn
英文摘要	The cortical processing of illusory contours provides a unique window for exploring the brain mechanisms underlying visual perception. Previous electrophysiological single-cell recordings demonstrate that a subgroup of cells in macaque V1 and V2 signal the presence of illusory contours, whereas recent human brain imaging studies reveal higher-order visual cortices playing a central role in illusory figure processing. It seems that the processing of illusory contours/figures may engage multiple cortical interactions between hierarchically organized processing stages in the ventral visual pathway of primates. However, it is not yet known in which brain areas illusory contours are represented in the same manner as real contours at both the population and single-cell levels. Here, by combining intrinsic optical imaging in anesthetized rhesus macaques with single-cell recordings in awake ones, we found a complete overlap of orientation domains in visual cortical area V4 for processing real and illusory contours. In contrast, the orientation domains mapped in early visual areas V1 and V2 mainly encoded the local physical stimulus features inducing the subjective perception of global illusory contours. Our results indicate that real and illusory contours are encoded equivalently by the same functional domains in V4, suggesting that V4 is a key cortical locus for integration of local features into global contours.
学科主题	Neurosciences & Neurology
收录类别	SCI
资助信息	National "973" Program [2011CBA00405]; Chinese Academy of Sciences (CAS); National Natural Science Foundation of China [30970983]
语种	英语
公开日期	2013-06-04
内容类型	期刊论文
源URL	[http://ir.sibs.ac.cn/handle/331001/2480]
专题	上海神经科学研究所_神经所(总)
推荐引用方式 GB/T 7714	Pan, YX,Chen, MG,Yin, JP,et al. Equivalent Representation of Real and Illusory Contours in Macaque V4[J]. JOURNAL OF NEUROSCIENCE,2012,32(20):6760-6770.
APA	Pan, YX.,Chen, MG.,Yin, JP.,An, X.,Zhang, X.,...&Wang, W.(2012).Equivalent Representation of Real and Illusory Contours in Macaque V4.JOURNAL OF NEUROSCIENCE,32(20),6760-6770.
MLA	Pan, YX,et al."Equivalent Representation of Real and Illusory Contours in Macaque V4".JOURNAL OF NEUROSCIENCE 32.20(2012):6760-6770.