Samenvatting
Data are given for eighteen drivers ranging in age from 21-65, at BAC=0,0.06, and 0.11. Alcohol causes larger lane and heading deviations, and increases detection and reaction times on the discrete task. Control-behaviour measures show that the driver's control gain decreases but stability margins are maintained under alcohol, while driver remnant increase. Such effects could be due to indifference thresholds and/or intermittent attention in the control task.