Formation of direction selectivity in natural scene environments
Formation of direction selectivity in natural scene environments
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DOI：
10.1162/089976600300015501
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发表时间：
2000-05-01
影响因子：
2.9
通讯作者：
Shouval, H
中科院分区：
文献类型：
--
作者：
Blais, B;Cooper, LN;Shouval, H
大多数简单和复杂的细胞在猫纹状皮质都是方向和方向选择。在本文中，我们使用单细胞学习规则来开发自然场景环境中的方向和方向选择性。我们表明，一个简单的主成分分析规则是不够的发展方向的选择性，但该规则以及类似的高阶规则可以。我们还表明，滞后和nonlaged细胞的收敛取决于在环境中的运动速度，和频闪饲养破坏这种收敛，导致方向选择性的损失。
Most simple and complex cells in the cat striate cortex are both orientation and direction selective. In this article we use single-cell learning rules to develop both orientation and direction selectivity in a natural scene environment. We show that a simple principal component analysis rule is inadequate for developing direction selectivity, but that the BCM rule as well as similar higher-order rules can. We also demonstrate that the convergence of lagged and nonlagged cells depends on the velocity of motion in the environment, and that strobe rearing disrupts this convergence, resulting in a loss of direction selectivity.