To examine intra- and interhemispheric communication or the transfer of information within and between the cerebral hemispheres, 32 right-handed learning disabled children aged 8-10 years, 11-13 years, and 14-16 years were presented a tactile discrimination task. Fabrics of the same or different texture were presented to the same hand (uncrossed…

First-, third-, and fifth-grade children and adults performed a tactile shape-discrimination task. Changes in the magnitude of differences between performance in the left and right perceptual fields were examined. Results suggested that the right hemisphere becomes progressively more specialized for tactile spatial ability with increasing age.…

Reports the results of two experiments dealing with children's visual and tactual performance. In the first task, after several presentations of a series, the tactual group made almost errorless discriminations. But with memory demands, tactual performance became poorer than visual performance. Found a large developmental difference. (JAC)

In the first experiment, the development of the ability to copy alphabet letters by black males aged 3-9 (middle and low S.E.S.) was studied, using a newly-developed scoring system. In the second experiment, kindergarteners learned to associate letter names with six lower-case printed letters by the anticipation method. The addition of an…