Adaptive Optimization of Visual Sensitivity

Journal of the Indian Institute of Science
Sergei Gepshtein, Thomas D Albright

Abstract

Sensory systems adapt to environmental change. It has been argued that adaptation should have the effect of optimizing sensitivity to the new environment. Here we consider a framework in which this premise is made concrete using an economic normative theory of visual motion perception. In this framework, visual systems adapt to the environment by reallocating their limited neural resources. The allocation is optimal when uncertainties about different aspects of stimulation are balanced. This theory makes predictions about visual sensitivity as a function of environmental statistics. Adaptive optimization of the visual system should be manifested as a change in sensitivity for an observer and for the underlying motion-sensitive neurons. We review evidence supporting these predictions and examine effects of adaptation on the neuronal representation of visual motion.

References

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Sep 30, 2005·Journal of Neurophysiology·Bart KrekelbergThomas D Albright
Apr 10, 2010·Journal of Vision·Luis Andres LesmesThomas D Albright
Feb 23, 2013·Proceedings of the National Academy of Sciences of the United States of America·Sergei GepshteinThomas D Albright
Nov 14, 2013·Psychological Review·Peter JuricaCees van Leeuwen

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