Feature selectivity in area 21a of the cat

被引：4

作者：

Kayser, C

König, P

机构：

[1] Max Planck Inst Biol Cybernet, D-72076 Tubingen, Germany

[2] Univ Zurich, Inst Neuroinformat, Zurich, Switzerland

[3] ETH, Zurich, Switzerland

[4] Univ Osnabruck, Inst Cognit Sci, D-4500 Osnabruck, Germany

来源：

NEUROREPORT | 2006年 / 17卷 / 08期

关键词：

feature tuning; local field potential; stimulus locking; VI; ventral pathway;

D O I：

10.1097/01.wnr.0000221842.50749.95

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We compared the feature tuning of neuronal activity in area 21a with the tuning in areas 17/18. Local field potentials and multi-unit activity recorded in alert animals showed similar selectivity to orientation in both areas, higher selectivity to spatial frequencies in areas 17/18 and higher selectivity and tuning significance to temporal frequencies in areas 17/18. In addition, only at sites in areas 17/18 did the local field potential exhibit locking to a horizontal motion pattern extracted from a natural movie. These results suggest that area 21a is concerned with the analysis of spatial features but lacks a faithful representation of temporal features. Hence, they foster the hypothesis that cortical area 21a is part of a ventral form pathway.

引用

页码：809 / 812

页数：4

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