Receptive-field dynamics in the central visual pathways
Gregory C. DeAngelis, Izumi Ohzawa, and Ralph D. Freeman (1995)
Receptive-field dynamics in the central visual pathways.
Trends Neurosci. 18: 451-458.
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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
employing 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 adequately characterized only in the
space-time domain. In this review, we focus on the spatiotemporal
RF structure of neurons in the lateral geniculate nucleus and primary
visual cortex, highlighting some of the implications of recent
findings for understanding early visual processing.
Wang, Y., Qi, X., and Chen, Y. (1996)
Simulations of receptive-field dynamics.
Trends Neurosci 19 (September): 385-386. (Letter to the Editor)
Reply (Letter to the Editor, Re: Wang, Qi, Chen)
Izumi Ohzawa, Gregory C. DeAngelis, Ralph D. Freeman (1996)
Trends Neurosci 19 (September): 386.
Space-Time Receptive Fields of Visual Neurons: Animations and Slides
Izumi Ohzawa --- Space-time receptive fields of neurons in the early visual pathway are illustrated
using animations. Slide files are also available for downloading for making
your own color slides for lectures and presentations.