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Robert Shapley; Spatial Vision and the Visual Cortex: can we establish a connection?. Journal of Vision 2004;4(8):118. doi: https://doi.org/10.1167/4.8.118.
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© ARVO (1962-2015); The Authors (2016-present)
Finding a connection between the activity of neurons in primary visual cortex (V1) and spatial vision was one of Russ DeValois's scientific goals. It is a hard problem because of the populations of neurons involved, the diversity of their visual spatial properties, and the dynamics of their responses. But trying to solve this tough problem has produced unexpected insights into how the cortex works. Cortical inhibition and feedback are of fundamental importance, for the dynamics, for feature selectivity, and for modulation by spatial context. Diversity (of V1 neurons) is a feature, not a bug. Color and spatial form are analyzed together in a single class of neurons: the spatially tuned, double-opponent neurons. Looking for the connection between Spatial Vision and the Visual Cortex has taught us about the cortex, and we hope it will teach us also about vision.
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