Comparison of topographic and spatial-frequency characteristics of the lateral suprasylvian and striate cortex in cats
Comparison of topographic and spatial-frequency characteristics of the lateral suprasylvian and striate cortex in cats
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猫外侧外侧上皮层和纹状体的地形和空间频率特征的比较
DOI：
10.1007/bf01052823
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发表时间：
2005
期刊：
影响因子：
0.5
通讯作者：
Y. Shelepin
中科院分区：
文献类型：
--
作者：
Y. Shelepin
本文根据作者以前和现在的研究结果，分析了视皮层两个视投射区（纹状皮层和外侧上裂区）神经元感受野的空间频率和地形特征的差异。接受领域的神经元在suprasylvian皮层是大的，它们的大小增加与偏心率和传输带占据了一个区域的低和中间的空间频率。另一方面，纹状体皮层神经元的感受野很小，它们的大小随着偏心率而增加，并且传输带位于中高空间频率的区域。诱发电位的潜伏期在纹状体比在上裂皮层长。对空间低频信息的分析在上外侧裂皮层中的处理比在纹状体皮层中的高频信息的处理早一点。投影区域的视网膜拓扑组织的相互作用使得感知场景的两个描述能够相关。
Differences in spatial frequency and topographic characteristics of receptive fields of neurons in two visual projection areas (striate cortex and lateral suprasylvian region) were analyzed on the basis of results of the writer's previous and present investigations. Receptive fields of neurons in the suprasylvian cortex are large; their size increases with eccentricity and the transmission band occupies a region of low and intermediate spatial frequencies. Receptive fields of striate cortical neurons, on the other hand, are small; they increase in size with eccentricity and the transmission band lies in the region of intermediate and high spatial frequencies. The latent period of evoked potentials is longer in the striate than in the suprasylvian cortex. Analysis of spatial low-frequency information is processed in the suprasylvian cortex a little earlier than high-frequency information is processed in the striate cortex. Retinotopically organized interaction of projection zones enables the two descriptions of a perceived scene to be correlated.