DeAngelis G C, Ohzawa I, Freeman R D
Group in Vision Science, School of Optometry, University of California, Berkeley 94720-2020, USA.
Trends Neurosci. 1995 Oct;18(10):451-8. doi: 10.1016/0166-2236(95)94496-r.
Neurons in the central visual pathways process visual images within a localized region of space, and a restricted epoch of time. Although the receptive field (RF) of a visually responsive neuron is inherently a spatiotemporal entity, most studies have focused exclusively on spatial aspects of RF structure. Recently, however, the application of sophisticated RF-mapping techniques has enabled neurophysiologists to characterize RFs in the joint domain of space and time. Studies that use these techniques have revealed that neurons in the geniculostriate pathway exhibit striking RF dynamics. For a majority of cells, the spatial structure of the RF changes as a function of time; thus, these RFs can be characterized adequately only in the space-time domain. In this review, the spatiotemporal RF structure of neurons in the lateral geniculate nucleus and primary visual cortex is discussed.
中枢视觉通路中的神经元在局部空间区域和有限的时间范围内处理视觉图像。尽管视觉反应神经元的感受野（RF）本质上是一个时空实体，但大多数研究仅专注于RF结构的空间方面。然而，最近复杂的RF映射技术的应用使神经生理学家能够在时空联合域中表征RF。使用这些技术的研究表明，膝状纹状体通路中的神经元表现出显著的RF动态。对于大多数细胞来说，RF的空间结构随时间变化；因此，只有在时空域中才能充分表征这些RF。在这篇综述中，将讨论外侧膝状体核和初级视觉皮层中神经元的时空RF结构。
