Manual persistence in infancy.
Caplan and Kinsbourne (1976) reported that infants of mean age 2.7 months grasped a rattle longer in the right hand than in the left hand. The present studies failed to find evidence of a manual asymmetry in neonates of mean age 3.3 days or in infants of mean age 2.4 months. Control of the right hand, however, increased significantly during this period.
D002657:Child Development; D005260:Female; D005556:Form Perception; D007839:Functional Laterality; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009048:Motor Skills