Multivariate analyses, followed by univariate tests, indicated that the normal children increased in sustained attention efficiency with age to both visual and auditory stimuli. Hyperactive children (9-14 years old) increased in sustained attention efficiency with age to auditory but not visual stimuli. (Author)

Reports the results of a high-speed search task administered to overactive and distractible (hyperactives), normoactive and distractible, and normoactive and attentive (controls) children. Instructions emphasized speed, accuracy, or both speed and accuracy. Indicates that controls and distractibles conformed to the fast guess model, which relates…

Three groups of elementary school children, rated on activity and distractibility, were given a visual search task with three levels of display load and tested twice in two conditions of stimulus visibility. Encoding deficit or data limitation did not account for the attentional performance of either hyperactive or somewhat hyperactive subjects.…

This paper reviews studies on cognitive processes that may mediate the development of early learning problems. Topics covered include auditory and visual discrimination deficits, integration of information from different modalities, the significance of attentional factors, contributions of memory factors, and the importance of cognitive style…