It is suggested that the so-called paradoxical calming or depressant effects of amphetamine on hyperactive children can be accounted for by the proposition that amphetamines increase arousal when the initial arousal level is low but decrease arousal when the initial level is high. (Author)

To test the suggestion that a deficit in selective attention is characteristic of learning disabled (LD) but not hyperactive (H) children, 72 students (12 LDH, 12 H, and 36 normal Ss) were timed on visual search tasks. (Author)

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)

A 6 1/2-year-old hyperactive boy was taught to reduce his muscular activity and tension through the use of electromyographic biofeedback for 11 sessions. (Author/DB)

Twelve learning disabled (LD), 12 learning disabled hyperactive (LDH) and 12 hyperactive (H) boys (6-11 years old) participated in an investigation of selective attention. Ss were asked to search for a target letter embedded within an array of noise letters. Two variations were included: one involving a simultaneous search for four possible target…

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Presented is the text of the Congressional hearings examining the etiology of hyperactivity and methods of treatment for hyperactive children. Sections cover witness testimony; statements; and additional information consisting of 15 reports, articles, and publications on the topic of food additives and drug therapy. Included are communications to…