The Effect of Minor Alcohol Stress on Decision Processes in a Step-Tracking Task

Twenty men were tested in step-input tracking. Minor stress was imposed by moderate alcohol dosage and an incompatible directional relation between control and display. Some target movements demanded a response in an improbable direction and posed a choice between long delay in response and a movement in the wrong direction. The duration of response latency (rl) and the number of directional errors revealed a Ss preference for accuracy or speed and his ability to estimate probabilities.