This study compared subjects from right-handed families and nonright-handed families in their ability to solve a mental-rotation task when instructed to use one of two different spatial strategies. Results suggested familial nonright-handers may be stronger in transformation of mental images, but weaker in reorientation in relation to left-right…

Examines findings of scientists and educators who have studied whole brain processes as a means of learning new information and skills. Applies this research to the classroom. (SRT)

Reviews early theoretical and research literature on handedness and places it within the larger context of the nature-nurture controversy. Discussion focuses on Baldwin's study of the development of hand preference in infants in relation to the recapitulation theory, mental development ("dynamogenesis"), and speech development.…

Examined the effect of lateral preference on passage comprehension and short-term memory function for 48 normal fourth-grade males. Lateralized readers recalled more information under auditory than written conditions; bilateral readers showed no preference. Between-group comparisons showed bilateral readers to comprehend significantly more than…

Examines hemispheric differences in processing tachistoscopically presented faces in right-handed 8-, 11-, and 13-year-olds. Concludes that younger children and males at all ages use a diffuse right-hemisphere processing strategy in recognizing faces, whereas some older females use a more integrated right-hemispheric strategy. (Author/CB)

Consistently over the three test situations, initial left-handedness' gives way during the third quarter of the first year to right-hand dominance. The way in which the shift occurs lends support to a maturational, rather than a learning or social pressure explanation of lateral asymmetry. (Author/CB)

Results of an experiment in which two speech sounds were presented simultaneously to the two ears in normal and unilaterally brain-damaged subjects suggest a role for the nondominant cerebral hemisphere in processing and/or storage of competing speech stimuli. (KW)

Examines the effect of age and sex on hand preference and hand skill in two studies using six samples of children and a reanalysis of adult data. Results included findings that left- handers have an advantage over right-handers in visuo-motor speed. There was no evidence of increased dextrality with age. (JAC)

Connectionistic notions of hemispheric specialization and use are incompatible with the network organization of the human brain. Although brain organization has correspondence with phenomena at more complex levels of analysis, the correspondence is not categorical in nature, as has been claimed by the left-brain/right-brain theorists. (Author/GC)

Forty right-handed high school and college students were trained to operate calculators with their left hands. Results suggest the possibility of improving office machine operating speed, without significant loss of accuracy, by instructing trainees to operate the keyboard with the alternate hand while recording information with the dominant hand.…