The interaction of handedness, familial sinistrality and sex on the performance of a dichotic listening task.

The contributions of handedness, familial sinistrality and sex to laterality effects on a dichotic listening task were examined. Left-handers exhibited left ear advantages, and right-handers showed right ear advantages in auditory asymmetry. These results varied with the sex and familial sinistrality of the subjects.

Does the 'torque test' measure cerebral dominance in adults?

The direction of drawing a circle, labeled the 'torque test' (Blau, 1977), was evaluated in 74 normal adults (age 14 to 44 yr.) as a predictor of both handedness and cerebral dominance on the dichotic listening test. The results indicate that torque is related to handedness but not to lateralization of language.

Auditory asymmetry and strength of manual preference reexamined.

Strong left- and right-handers, and moderate left- and right-handers administered a dichotic listening words test exhibited right ear advantages in direct proportion to their utilization of the right hand on 11 unimanual task. Strong left-handers exhibited a left ear advantage, and moderate left-handers failed to show laterality. Strong right-handers showed the largest right ear advantage.