Article
Failure to support the right-shift theory's hypothesis of a 'heterozygote advantage' for cognitive abilities.
British journal of psychology (London, England : 1953) - 1 Feb 1999
Cerone L J, McKeever W F
Abstract excerpt
Annett's (1985) 'right-shift' theory of language dominance and handedness posits three genotypes, rs++, rs(+)- and rs(-)-, and Annett has hypothesized that there are cognitive ability correlates of these genotypes. The rs++ genotype person is held to be 'at risk' for maldevelopment of spatial or other right hemisphere-based cognitive abilities, and the rs(-)- genotype individual is held to be at risk for...
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