A directional bias for studies of laterality.
We have shown that a directional bias (D), previously thought to be unrelated to cerebral lateralization, is, in fact, intimately associated with it. In a group of fully consistent dextrals without familial sinistrality, the direction of lateral asymmetries depended upon the direction of D. Left-directed dextrals manifested the usual visual field advantages for linguistic and spatial material, while right-directed dextrals did not. D is therefore recommended as moderator variable for future studies of laterality.
Alter
I
I
Department of Psychiatry, NYU Medical Center, NY 10016.
Rein
S
S
Toro
A
A
D000293:Adolescent; D000328:Adult; D001288:Attention; D004292:Dominance, Cerebral; D005260:Female; D005556:Form Perception; D007839:Functional Laterality; D006801:Humans; D008297:Male; D009949:Orientation; D010364:Pattern Recognition, Visual; D011597:Psychomotor Performance; D011932:Reading; D012660:Semantics