Reviews studies in which the psychophysiological responses of Type A and B subjects were studied in various contexts. It appears that Type A's manifest greater psychophysiological arousal in solitary as well as interpersonal situations in which there is a moderate external incentive to accomplish something and an intermediate probability of…

Reviewed task-related differences in physiological arousal between Type A and Type B persons and found that differences are less consistent and of a smaller magnitude than what is usually assumed. Furthermore, the median difference in systolic blood pressure between Type A and Type B persons working on tasks was small. (Author/JAC)