Citation

Lisper HO, Toernros J, van Loon J. Proc. Int. Counc. Alcohol Drugs Traffic Safety Conf. 1981; 1981: 1024-1039.

Copyright

(Copyright © 1981, The author(s) and the Council, Publisher International Council on Alcohol, Drugs and Traffic Safety)

DOI

unavailable

PMID

unavailable

Abstract

The effects of diazepam (10 mg) or caffeine (100 mg) was compared with placebo. Treatments were administered orally at weekly intervals according to a balanced design and under double-blind conditions. Each time one of the six female subjects drove for three hours on a motorway. Driving performance was estimated by a subsidiary reaction time (rt) task. It was found that the level of rt was significantly higher in the diazepam condition. A ten-minute rt-task before and after driving predicted the effect of diazepam. However, the subjects' own subjective experiences did not predict the deterioration in performance. (Author/TRRL)