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)

The attention controls of 30 learning disabled and 30 normal males (8-to 11-years-old) were tested by a vigilance task in which vigilance was defined as ability to detect infrequently occurring signals over a prolonged time period when signals were embedded in a background of regularly occurring events. (Author/GW)

Performances of 12 hyperactive learning disabled (LD) boys and 12 non-hyperactive LD boys were compared with two groups of 12 normal control boys (6-11 years old) on a visual search task. Ss were asked to locate a target letter appearing within an array of randomly selected letters during cued and non-cued trials. Results indicated that in the…

Forty-two educable mentally retarded children (21 boys, 21 girls) performed an oddity learning task in one of three conditions: experimenter not present, experimenter present and providing relevant cues (RC), and experimenter present and providing irrelevant cues (IC). The experiment was designed to test J. Turnure's outerdirectedness hypothesis…

The effect of same sex and cross sex experimenters on the attentive behaviors and learning of 64 educable mentally retarded children were examined under two conditions: experimenter not present; and experimenter present and providing cues relevant to task mastery. Female Ss were found to perform significantly better with male experimenters than…

Evaluated with 18 learning disabled boys (from 6 to 12 years of age) was the diagnostic potential of a vigilance task to evaluate the effects of medication on attention span and distractibility. (DB)

Eighteen hyperkinetic boys (ages 5-12) who had a history of successful drug treatment with methylphenidate were compared with a similar group of normal controls on a series of objective measures of activity and attentional problems. (Author/DLS)

The effects of extraneous auditory stimulation on incidental learning in 27 normal (CA 6 years) and 27 retarded (CA 10 and 11 years) Ss was examined. (DB)

Two aides operating a kindergarten-style program for four to eight institutionalized mental retardates (6-to-11 years-old) were trained, using observer feedback, to apply generalized correct social contingencies to 10 defined classes of appropriate and inappropriate child behaviors. (Author)

A psychological and pedagogic study was made of a group of 22 children between the ages of 7 and 12 years in whom the only abnormal feature in the case history was neonatal cerebral effects. (Author)