Orientation selectivity in cat primary visual cortex: local and global measurement

被引：0
作者：
Tao Xu
Hong-Mei Yan
Xue-Mei Song
Ming Li
机构：
[1] University of Electronic Science and Technology of China,Key Laboratory for Neuroinformation of Ministry of Education
[2] Chinese Academy of Sciences,Shanghai Institutes of Biological Sciences
[3] National University of Defense Technology,The Department of Automatic Control, College of Mechatronics and Automation
来源：
Neuroscience Bulletin | 2015年 / 31卷
关键词：
cat; orientation selectivity; tuning width; circular variance; primary visual cortex;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, we investigated orientation selectivity in cat primary visual cortex (V1) and its relationship with various parameters. We found a strong correlation between circular variance (CV) and orthogonal-topreferred response ratio (O/P ratio), and a moderate correlation between tuning width and O/P ratio. Moreover, the suppression far from the peak that accounted for the lower CV in cat V1 cells also contributed to the narrowing of the tuning width of cells. We also studied the dependence of orientation selectivity on the modulation ratio for each cell, which is consistent with robust entrainment of the neuronal response to the phase of the drifting grating stimulus. In conclusion, the CV (global measure) and tuning width (local measure) are signifi cantly correlated with the modulation ratio.
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页码：561 / 571
页数：10
相关论文
共 184 条
[1]  
Hubel DH(1962)Receptive fi elds, binocular interaction and functional architecture in the cat’s visual cortex J Physiol 160 106-154
[2]  
Wiesel TN(1968)Receptive fields and functional architecture of monkey striate cortex J Physiol 195 215-243
[3]  
Hubel DH(2003)Dynamics of orientation selectivity in the primary visual cortex and the importance of cortical inhibition Neuron 38 689-699
[4]  
Wiesel TN(1991)Relation of cortical cell orientation selectivity to alignment of receptive fields of the geniculocortical afferents that arborize within a single orientation column in ferret visual cortex J Neurosci 11 1347-1358
[5]  
Shapley R(1994)Orientation selectivity of cortical neurons during intracellular blockade of inhibition Science 265 774-777
[6]  
Hawken M(1996)Orientation selectivity of thalamic input to simple cells of cat visual cortex Nature 380 249-252
[7]  
Ringach DL(2002)Anatomical evidence of subcortical contributions to the orientation selectivity and columns of the cat's area 17 Neurosci Lett 324 247-251
[8]  
Chapman B(1984)Contribution of inhibitory mechanisms to the orientation sensitivity of cat dLGN neurones Exp Brain Res 55 192-195
[9]  
Zahs K(1998)Orientation tuning and receptive fi eld structure in cat striate neurons during local blockade of intracortical inhibition Neuroscience 84 25-36
[10]  
Stryker MP(1995)An emergent model of orientation selectivity in cat visual cortical simple cells J Neurosci 15 5448-5465
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