Effect of ethanol on judgments of performance.

Ethanol impairs cognitive and psychomotor performance, although the precise reasons for this remain unclear. We investigated the effect of ethanol on individuals' judgment of their performance. Eighteen healthy volunteers (19-22 years) received a high dose of ethanol (0.

Validity and sensitivity of a pen computer battery of performance tests.

This study compared administration of performance tests and visual analogue scales (VAS) using a newly developed pen computer (PenC) battery with established tests using either pencil-and-paper (PP) or conventional computer. The performance of 47 subjects (23 male, age 18-45 years, weight 51-112 kg) was compared on the two systems after a dose of ethanol (0.8 g/kg up to a maximum of 60 g for males, 50 g for females) or placebo in a double-blind two-period randomized crossover study.