Stories about hands, brains, and minds.
The "extreme" versus "mild" classification of handedness of Natsopoulos et al. (1998) is not comparable to that of Annett (review, 1995) because 50% of the former sample were left-handers while the samples of the latter were unselected for handedness. The 20% of the Natsopoulos sample called "extreme" right-handers represent nearly 40% of the general population. The possibility cannot be ruled out that the advantage for right-handers in this sample was due to a small excess of disabled children among left-handers because there were no controls for hand skill or for reading ability.
University of Leicester, Leicester, United Kingdom.
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Annett
D001921:Brain / Q000502:physiology*; D002648:Child; D003071:Cognition / Q000502:physiology*; D007839:Functional Laterality; D006801:Humans