This study used saccadic eye movements to assess visuospatial attention in 53 normal children (ages 8-15). Saccadic latency, the ability to suppress extraneous saccades during fixation, and the ability to inhibit task-provoked anticipatory saccades all improved with age. Developmental patterns varied by task. Analyses of age-related changes may be…

Tests the hypothesis that habituation of attention to irrelevant information can account for within-task improvement in selective attention--that children who are preexposed to stimuli that will later be irrelevant in a speeded classification task will experience less interference than children not given the opportunity to habituate. (HOD)

Factor analysis performed on the Wechsler Intelligence Scale for Children-Revised (WISC-R) for 252 subjects (ages 6-16), who were mentally handicapped, slow learners, or learning disabled, identified 3 factors: verbal-conceptual, perceptual-spatial, and distractibility-short-term memory. Findings suggest that the factor example can be used to…