Pattern-selective adaptation in visual cortical neurones

Research output: Contribution to journalArticle

Abstract

Prolonged viewing of a grating pattern produces striking 'after-effects', involving changes in the detectability, apparent size, orientation and contrast of subsequently viewed gratings. Studies of perceptual after-effects have been used to infer properties of neurones in the human visual cortex similar to those pattern-selective neurones whose sensitivities have been directly measured in the visual cortex of cats and monkeys. Such inferences are based on two assumptions: first, that perceptual changes result from changes in the distribution of activity within the responding population of neurones; second, that the effect of adaptation on each neurone of the population is to reduce its sensitivity uniformly to all stimuli. The experimental results of experiments on cats reported support the first but challenge the second assumption, as they show that after adaptation to a particular grating the sensitivity of a single neuron to that grating may be reduced more than its sensitivity to other gratings.

Original languageEnglish (US)
Pages (from-to)850-852
Number of pages3
JournalNature
Volume278
Issue number5707
StatePublished - 1979

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Neurons
Visual Cortex
Cats
Population
Haplorhini

ASJC Scopus subject areas

  • General

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Pattern-selective adaptation in visual cortical neurones. / Movshon, J. Anthony; Lennie, P.

In: Nature, Vol. 278, No. 5707, 1979, p. 850-852.

Research output: Contribution to journalArticle

Movshon, JA & Lennie, P 1979, 'Pattern-selective adaptation in visual cortical neurones', Nature, vol. 278, no. 5707, pp. 850-852.
Movshon, J. Anthony ; Lennie, P. / Pattern-selective adaptation in visual cortical neurones. In: Nature. 1979 ; Vol. 278, No. 5707. pp. 850-852.
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