Mathematical ability and the right-shift theory of handedness

Mathematical ability and the right-shift theory of handedness

A genetic theory of handedness, the right-shift theory, associates differential patterns of cerebral functioning with contrasting handedness groups and suggests that individuals with an rs + + genotype will be disadvantaged in mathematical performance. This hypothesis is investigated with contrastin...

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Bibliographic Details
Published in:Neuropsychologia Vol. 29; no. 11; p. 1075
Main Authors: Whittington, J E, Richards, P N
Format: Journal Article
Language:English
Published: England 1991
Subjects:
Achievement
Adolescent
Adult
Aptitude
Child
Female
Follow-Up Studies
Functional Laterality - genetics
Gene Frequency - genetics
Genotype
Humans
Longitudinal Studies
Male
Mathematics
Models, Genetic
United Kingdom
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Summary:A genetic theory of handedness, the right-shift theory, associates differential patterns of cerebral functioning with contrasting handedness groups and suggests that individuals with an rs + + genotype will be disadvantaged in mathematical performance. This hypothesis is investigated with contrasting handedness groups drawn from a national sample of over 11,000 children from the National Child Development Study. Some differentiation in cognitive performance between handedness groups is found in the direction predicted by the right-shift theory but the level of the findings is not statistically significant. The rs+ +/mathematical deficit hypothesis is not confirmed.
ISSN:0028-3932
DOI:10.1016/0028-3932(91)90077-L