Familial sinistrality and sex differences in cognitive abilities.
The performance of right-handed males and females, with and without a family history of sinistrality (FS+ and FS-, respectively) were examined for three cognitive abilities: spatial ability, verbal fluency, and perceptual speed. FS+ subjects, especially females, showed performance decrements in spatial ability. Also, FS+ subjects, especially males, showed performance decrements in perceptual speed, with no differences being observed in verbal fluency.
D003071:Cognition; D004193:Discrimination Learning; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D009949:Orientation; D010364:Pattern Recognition, Visual; D010641:Phenotype; D011930:Reaction Time; D012737:Sex Factors; D013028:Space Perception; D014706:Verbal Learning