Effect of Meptazinol and Ethanol on Human Psychomotor Performance and Mood Ratings

amplitude (SD), smooth pursuit velocity (SPV), critical flicker fusion threshold (CFF), choice reaction time (CRT) and visual analogue scales were assessed. PSV (p < 0.01), SD (p < 0.001) and SPV (p < 0.01) were significantly impaired after ethanol, while CFF, CFT and visual analogue scales showed no significant effect. None of the tests was affected by the meptazinol treatment alone. No changes were observed in the ethanol- induced impairment of PSV, SD and SPV when meptazinol was given in combination with ethanol.