Recurrent Processing in the Formation of Shape Percepts

	Recurrent Processing in the Formation of Shape Percepts
	Drewes J[*]1,2; Goren G 1; Zhu WN 3,4; Elder JH 1
刊名	JOURNAL OF NEUROSCIENCE
	2016
卷号	36 期号:1 页码:185-192
关键词	contour processing feedback grouping perceptual organization recurrent processing shape perception temporal integration
通讯作者	mail@jandrewes.de
英文摘要	The human visual system must extract reliable object information from cluttered visual scenes several times per second, and this temporal constraint has been taken as evidence that the underlying cortical processing must be strictly feedforward. Here we use a novel rapid reinforcement paradigm to probe the temporal dynamics of the neural circuit underlying rapid object shape perception and thus test this feedforward assumption. Our results show that two shape stimuli are optimally reinforcing when separated in time by similar to 60 ms, suggesting an underlying recurrent circuit with a time constant (feedforward + feedback) of 60 ms. A control experiment demonstrates that this is not an attentional cueing effect. Instead, it appears to reflect the time course of feedback processing underlying the rapid perceptual organization of shape.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://159.226.149.26:8080/handle/152453/9524]
专题	昆明动物研究所_认知障碍病理学
作者单位	1.Centre for Vision Research, York University, Toronto, Ontario, Canada M3J 1P3, Center for Mind/Brain Sciences, University of Trento, I-38068 Rovereto, Italy 2.Centre for Vision Research, York University, Toronto, Ontario, Canada M3J 1P3. 3.School of Information Science, Yunnan University, Kunming 650091, China 4.Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China. Abstract
推荐引用方式 GB/T 7714	Drewes J[*],Goren G,Zhu WN,et al. Recurrent Processing in the Formation of Shape Percepts[J]. JOURNAL OF NEUROSCIENCE,2016,36(1):185-192.
APA	Drewes J[*],Goren G,Zhu WN,&Elder JH.(2016).Recurrent Processing in the Formation of Shape Percepts.JOURNAL OF NEUROSCIENCE,36(1),185-192.
MLA	Drewes J[*],et al."Recurrent Processing in the Formation of Shape Percepts".JOURNAL OF NEUROSCIENCE 36.1(2016):185-192.