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This study involved 27 children displaying cross-situational hyperactivity and 14 youngsters with borderline hyperactivity. For all patients, evoked potentials were recorded after receiving 0 (placebo), 0.3 and 0.6 mg/kg methylphenidate. Under each pharmacologic condition, subjects were administered: a photic stimulation procedure; two versions of the(More)
Two studies were conducted on the effects of methylphenidate (20 mg) on young adults' event-related potentials. Although this stimulant elevated heart rate in study 1 (n = 14), it failed to affect either performance or amplitude of the late positive component (LPC) obtained from two versions of the continuous performance test (CPT). Because performance on(More)
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