Sleep deprivation deficits and their reversal by d- and l-amphetamine.

Vigilance performance, waking EEG patterns and mood were studied before and after one night of sleep deprivation in normal males. The effects of d-amphetamine 10 mg, l-amphetamine 10 mg and placebo on these measures were compared. Changes were found in all three measures after one night of sleep-deprivation. d-Amphetamine was more powerful than l-amphetamine in reversing sleep deprivation effects on vigilance and on waking EEG.