Shape-coding in IT cells generalizes over contrast and mirror reversal, but not figure-ground reversal

We assessed how the visual shape preferences of neurons in the inferior temporal cortex of awake, behaving monkeys generalized across three different stimulus transformations. Stimulus-preferences of particular cells among different polygon displays were correlated across reversed contrast polarity...

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Bibliographic Details
Published inNature neuroscience Vol. 4; no. 9; pp. 937 - 942
Main Authors Baylis, Gordon C, Driver, Jon
Format Journal Article
LanguageEnglish
Published United States Nature Publishing Group 01.09.2001
Subjects
Animals
Contrast Sensitivity - physiology
Field Dependence-Independence
Form Perception - physiology
Macaca fascicularis
Male
Neurons - physiology
Neurosciences
Photic Stimulation - methods
Physiological aspects
Psychological aspects
Publishing
Temporal Lobe - cytology
Temporal Lobe - physiology
Temporal lobes
Visual perception
Visual Perception - physiology
United Kingdom
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Summary:We assessed how the visual shape preferences of neurons in the inferior temporal cortex of awake, behaving monkeys generalized across three different stimulus transformations. Stimulus-preferences of particular cells among different polygon displays were correlated across reversed contrast polarity or mirror reversal, but not across figure-ground reversal. This corresponds with psychological findings on human shape judgments. Our results imply that neurons in inferior temporal cortex respond to components of visual shape derived only after figure-ground assignment of contours, not to the contours themselves.
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ISSN:1097-6256
1546-1726
DOI:10.1038/nn0901-937