Sensory coding

Ian P. Howard

in Perceiving in Depth

Published in print February 2012 | ISBN: 9780199764143
Published online May 2012 | e-ISBN: 9780199949359 | DOI:

Series: Oxford Psychology Series

Sensory coding

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The general principles of sensory coding that are common to all sensory systems are reviewed, including the nerve impulse, feature detectors, metamerism, sensory opponency, and temporal coding. This is followed by a discussion of higher-order coding, including systems tuned to more than one stimulus feature, nested coding systems, and rules governing the perception of visual structures. The idea that the visual system embodies an intrinsic geometry is critically reviewed. The chapter ends with a review of perceptual learning, which refers to the extent to which basic visual functions can be improved with practice.

Keywords: sensory coding; temporal coding; feature detectors; visual geometry; perceptual learning

Chapter.  65042 words.  Illustrated.

Subjects: Neuroscience

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