Adaptation and gain normalization.

S Ullman; G Schechtman

doi:10.1098/rspb.1982.0076

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Adaptation and gain normalization.

S Ullman·G Schechtman

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Abstract

It has been suggested in the past that adaptation effects may serve a useful role in perception. This paper shows that if the adaptation process follows a simple scheme, called proportional gain adjustment, then it can fulfil two useful functions: correction of errors and recalibration. The proposed scheme controls the gain of the system. Although it is memoryless, it ensures a setting of the gain at such a level that the average of the measured signal in the environment is always mapped onto a fixed internal representation. The proportional gain adjustment scheme is discussed in the context of single-band multi-channel models, and is shown to exhibit various phenomena associated with visual adaptation.

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Adaptation, Physiological Models, Biological Perception Journal Article Research Support, U.S. Gov't, Non-P.H.S.

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S Ullman, G Schechtman. 1982-10-22. Adaptation and gain normalization.. https://doi.org/10.1098/rspb.1982.0076

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