Excess of non-right handedness among individuals with intellectual disability: experimental evidence and possible explanations - PubMed

Excess of non-right handedness among individuals with intellectual disability: experimental evidence and possible explanations

G Grouios et al. J Intellect Disabil Res. 1999 Aug.

Abstract

Seventy-three subjects with mild and moderate intellectual disability (ID) of an unknown/idiopathic nature, who had no record of specific deficits in motor control, and 73 normal controls, matched for chronological age and sex, underwent evaluation of handedness. The results confirmed the previously reported excess of non-right handedness among subjects with ID, and suggested that this finding might be indicative of a deviant cerebral organization or atypical lateralization of cerebral representation of function in this group. However, it was noted that further research is needed to clarify how far this is a function of level of motor skill and how far is a syndrome-specific pathological phenomenon.

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