Provides findings of a study in which it was found that asymmetries in the size of the two feet were strongly related to sex and handedness; right-handed males having larger right feet and right-handed females having larger left feet, the reverse being seen in non-right-handed individuals. Differences were apparent in children even younger than…

Examined consistency of hand preference in a longitudinal study of children between 18 and 42 months of age. Results showed a sex-specific relationship between hand consistence and intellectual development. Females with consistency of handedness were precocious compared to females without such consistency; the same relationship did not hold for…

Reports on structural asymmetrics between the hemispheres which are found in the human brain. Auditory region and Sylvian Fissure asymmetry have also been observed in the fetus and in other primates. Describes research which has correlated asymmetries with hand preference, certain childhood learning disabilities and some dementing illnesses of…

Investigated the relationship between hand writing posture and cerebral dominance of 48 left handed writers and 25 right handed writers. Determined that cerebral dominance is related to handedness and to whether or not the writing hand posture is normal or inverted. (SL)

Suggests that since most newborn infants (65%) preferred to lie with their heads turned to the right, whereas 15% showed a distinct preference for the left, right head-orientation preference may contribute to the early development of right-handedness. (Author/SK)