A network view of the structure of center/surround modulations of V1 receptive field properties in visual and cortical spaces

被引：1

作者：

Seriès, P ^{[1
]}

Georges, S ^{[1
]}

Lorenceau, J ^{[1
]}

Frégnac, Y ^{[1
]}

机构：

[1] CNRS, UPR 2191, Unite Neurosci Integrat & Computat, F-91198 Gif Sur Yvette, France

来源：

NEUROCOMPUTING | 2001年 / 38卷

关键词：

primary visual cortex; contextual modulations; long-range horizontal connectivity; cortical orientation maps;

D O I：

10.1016/S0925-2312(01)00386-1

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Firing of V1 cells in response to test stimuli shown in the classical discharge field is highly dependent on the spatial context (orientation/contrast center-surround gradients) in which they are embedded. Here, we present a preliminary study of a large-scale detailed model constrained by physiological and psychophysical data which accounts for the modulatory effects induced by the concomitant stimulation of the "silent" surround. Numerical simulations were used to predict the changes produced at the firing level as a function of the neighborhood relationship imposed by the location of the cell in the orientation map. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：881 / 888

页数：8

共 42 条

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