OSCILLATORY RESPONSES IN CAT VISUAL-CORTEX EXHIBIT INTER-COLUMNAR SYNCHRONIZATION WHICH REFLECTS GLOBAL STIMULUS PROPERTIES
OSCILLATORY RESPONSES IN CAT VISUAL-CORTEX EXHIBIT INTER-COLUMNAR SYNCHRONIZATION WHICH REFLECTS GLOBAL STIMULUS PROPERTIES
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DOI：
10.1038/338334a0
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发表时间：
1989-03-23
期刊：
影响因子：
64.8
通讯作者：
SINGER, W
中科院分区：
文献类型：
--
作者：
GRAY, CM;KONIG, P;SINGER, W
视觉模式识别的一个基本步骤是在空间上分离的特征之间建立关系。最近，我们发现猫视皮层神经元在40-60赫兹(参考文献1，2)范围内有振荡反应，这种振荡反应与功能柱中的细胞同步发生，并与局部振荡场势密切相关。这导致我们假设，空间分布的特征选择性细胞的振荡反应的同步可能是建立视野不同部分特征之间关系的一种方式2，3。为了支持这一假设，我们在这里证明了空间分离的列中的神经元可以同步它们的振荡反应。平均而言，同步没有相位差，依赖于细胞的空间分离和取向偏好，并受全局刺激性质的影响。
A FUNDAMENTAL step in visual pattern recognition is the establishment of relations between spatially separate features. Recently, we have shown that neurons in the cat visual cortex have oscillatory responses in the range 40–60 Hz (refs 1,2) which occur in synchrony for cells in a functional column and are tightly correlated with a local oscillatory field potential. This led us to hypothesize that the synchronization of oscillatory responses of spatially distributed, feature selective cells might be a way to establish relations between features in different parts of the visual field2,3. In support of this hypothesis, we demonstrate here that neurons in spatially separate columns can synchronize their oscillatory responses. The synchronization has, on average, no phase difference, depends on the spatial separation and the orientation preference of the cells and is influenced by global stimulus properties.