Atypical cerebral dominance in Down’s syndrome

Abstract

Recent research in which a number of procedures have been used to assess cerebral specialization in individuals with Down’s syndrome (DS) is summarized. We propose a model of cerebral specialization that has as its core feature the biological dissociation between speech perception and the production of speech and other complex movements. Initial tests of the model are discussed with respect to some of the cognitive deficits experienced by DS individuals. © 1992, Psychonomic Society, Inc.. All rights reserved.