Evidence for a generalized Laguerre transform of temporal events by the visual system.
It is generally assumed that the early visual processing is constituted by a set of filters operating in parallel. In this respect the visual system performs a transform, generating a code of the characteristics of the input signal. Recently, it has been suggested that the coding of the spatial characteristics by the visual system can be described by a Hermite transform (Martens, 1990a, b). It was also suggested that a three-dimensional Hermite transform can be used to code spatiotemporal events. In contrast to this latter suggestion, we argue that the coding of temporal events takes the form of a generalized Laguerre transform. We review psychophysical evidence supporting this hypothesis.
den Brinker
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Electrical Engineering Department, Eindhoven University of Technology, The Netherlands.
Roufs
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JA
D000465:Algorithms; D006801:Humans; D008959:Models, Neurological; D015233:Models, Statistical; D014796:Visual Perception / Q000502:physiology*