Wulst lesions in pigeons disrupt go/no-go reversal.
Pigeons with lesions of either the Wulst or ectostriatum were compared to controls on reversal of a go/no-go pattern discrimination. The Wulst-lesioned animals were slower to acquire the response to the new S+ but were not different from the other groups on extinction of response to the old S+. The ectostriatum-lesioned group was not different from controls. The results extend the range of situations in which Wulst-lesioned pigeons have been found to show a reversal deficit and are consistent with the notion that Wulst lesions may disrupt learning.
Powers
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AS
Department of Psychology, St. John's University, Jamaica, NY 11439.
D000818:Animals; D010856:Columbidae / Q000502:physiology*; D005556:Form Perception / Q000502:physiology*; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology*; D012193:Reversal Learning / Q000502:physiology*; D013687:Telencephalon / Q000502:physiology*