Abstract
The primary aim of this study was to compare task perfor-mance in a laboratory test and real driving performance ofoutpatients receiving diazepam medic.ation with those ofcontrol subjects. Real driving performance was measuredby trained observers. The design of the laboratory testwas baserf on a vigilante task (high attention)directlyfollowed by a simple eye-hand coordination task (low at-tention). Twenty-two males participated in the study. Pa-tients receiving diazepam showed impaired performance inthe driving test and the low-attention task.