Eighteen boys, 10 to 11 years of age, with learning disorders were compared with normally achieving boys on an attention demanding task under the conditions of constant stimulation and stimulus change. (Author/MC)

Studies reported showed retarded children less inattentive and distractible than the literature has suggested, and suggested that increased non-task orientations (glancing) in the presence of an adult might best be interpreted as information seeking rather than evidence of distractibility. (Author/KW)

The effects of a visual distractor on vigilance task performance were examined in a sample of 35 learning disabled and 35 normal boys 8-12 years old. (Author/DB)

The span of apprehension (a measure of the amount of information processed simultaneously from a brief visual display) was studied in two experiments involving 40 normal and learning disabled boys (ages 6-11 years). (Author/DLS)

The spans of apprehension (the amount of information processed simultaneously from a brief visual display) of 19 hyperactive and 19 normal boys (6-10 years old) were compared with a forced-choice letter-recognition task developed by W. Estes. (Author/CL)

Three groups of three boys (6-12 years old) referred to a hospital study unit for evaluation of hyperactive behavior were tested on a classification task involving selective attention while on either dextroamphetamine or placebo. (Author/CL)

Interviewed about their child's infancy and early childhood were parents of 327 elementary school children classified as low achieving, poorly adjusted, hyperactive, or control Ss. (CL)

Investigated were attention and performance on simple tasks as well as classroom attention of seriously disturbed, communication impaired, autistic children under conditions of reduced auditory input (using ear protectors). (Author)

Reinforcement techniques for increasing the attention span of retarded students is investigated. (CD)