Some of the major lines of investigation that point to neurophysiological factors in spatial skill are presented. These lines include: the two hemispheres of the brain, recent studies, tachistoscopic studies, morphological differences between the cerebral hemispheres, Geschwind and Levitsky's discovery, cerebral dominance re-examined, sex…

A review of the research pertinent to hearing subjects is provided as background for understanding recent studies which indicate that an early severe hearing loss can influence the lateral organization of the brain for processing language and other types of information. (Author/BD)

Examines language and spatial lateralization of 49 elementary American Indian students using a cognitive-manual dual task model and psychoeducational assessment techniques. All students were found to be left-hemisphere dominant for language and some were lateralized to the left hemisphere for spatial function. Contradicts evidence of right-brain…

Compared lateral preference patterns for normal and learning-disabled children. Results indicated that learning-disabled children were more bilateral on factors involving visually fine motor activity, listening, and fine motor foot preference. Also studied the verbal-spatial abilities of learning-disabled children classified as normal or…

Both right-and left-handed normally developing 6-year-olds showed considerable evidence of bilateralization of hemispheric functions for spatial and verbal information processing; the slowly developing children (ages 5-9) exhibited unusual patterns of hemispheric specialization usually opposite those typically expected in children or adults.…

The laterality preference patterns and types of oral reading errors were examined for seventh-grade males. Results support the initial argument that difference-poor readers fail to comprehend because of problems in organizing visual input, which seems intimately tied to a bilateralization of functions. (Author)

Focuses on the differential representation of mental functions between the two human cerebral hemispheres. The manner in which right hemisphere function laterizes in childhood was studied in 98 five- to twelve-year-old children. (CM)

Two experiments are presented in which lateralization of monaural, auditory input affected the evaluation of verbal passages. Discusses lateral differences in evaluating auditory stimuli in the framework of the left hemisphere's specialization for the holistic processing of objective information and the right hemisphere's specialization for the…

Results for 75 medical students and 248 undergraduates suggest that the Myers-Briggs Type Indicator appears to sample only 3 bipolar personality dimensions rather than the 4 that the use of "type tables" implies. One of these dimensions shares substantial variance with the cognitive model of hemispheric dominance. (SLD)

Investigates visual processing asymmetries in normal and dyslexic readers to determine whether differences between dyslexics and normals were due to structural hemispherical differences or to strategical processing differences. Results indicate dyslexics behave as normal readers if they are unable to predict whether the stimulus will be verbal or…