Impairments in spatial generalization of visual skills after V4 and TEO lesions in macaques

P.H.M. de Weerd*, R. Desimone, L.G. Ungerleider

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


The authors tested the spatial generalization of shape and color discriminations in 2 monkeys, in which 3 visual field quadrants were affected, respectively, by lesions in area V4, TEO, or both areas combined. The fourth quadrant served as a normal control. The monkeys were trained to discriminate stimuli presented in a standard location in each quadrant, followed by tests of discrimination performance in new locations in the same quadrant. In the quadrant affected by the V4 + TEO lesion, the authors found temporary but striking deficits in spatial generalization of shape and color discriminations over small distances, suggesting a contribution of areas V4 and TEO to short-range spatial generalization of visual skills.
Original languageEnglish
Pages (from-to)1441-1477
JournalBehavioral Neuroscience
Issue number6
Publication statusPublished - 1 Jan 2003
Externally publishedYes

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