[Effect of tetrabamate, phenobarbital and a small quantity of alcohol on certain perceptive-motor aspects in connection with automobile driving].

Studies have been conducted of the respective effects a dose of 300 mg tetrabamate administered daily for one week, of 45 mg phenobarbital also given daily for one week (tetrabamate contains 15% phenobarbital) and of a small amount of alcohol alone or associated with one or the other of these drugs. Several perceptual-motor components involved in the driving function have been measured by testing signal detection of threshold contrast under mesopic vision following glare and without glare, critical fusion frequency, perceptual-motor reaction pattern for simple reaction time or choice reaction time during which the different signals do not appear with the same probability, and perceptual style by means of the rod-and-frame test.