Alpha Activity, Time Perception, Locus of Control, Androgyny, Self Concept, and Anxiety in Type A and Type B Females

Twenty Type A (coronary-prone) and 20 Type B (coronary-resistant) college aged females were compared on alpha production, time estimation, locus of control, androgyny, self concept, and state and trait anxiety. Type B females spent significantly more time, during a 10 minute recording session, in alpha at both the 20uv and 30uv levels than Type A females (t_ = 3.91, p \u3c .001; t = 3.09, p \u3c .01). Additionally, Type B females had a greater number of discrete periods of alpha activity at both the 20uv and 30uv levels (t = 1.706, p \u3c .05; t = 2.37, p \u3c .025). Differences were found between Type A\u27s and Type B\u27s on three of four unfilled time estimation tasks: 7 sec (t = 2.59, p \u3c .01), 15 sec (t = 3.86, p \u3c .0005), and 30 sec (t = 5.00, p \u3c .0005). In each case, Type A\u27s estimated significantly shorter intervals; however, no differences were observed between the two groups on a filled time estimation task. A\u27s and B\u27s did not differ in terms of locus of control. A greater proportion of Type A females were categorized as androgynous than were Type B females. Type A females were found to be significantly more certain of their self perceptions and more defensive than Type B\u27s. There were no differences between Type A and B females on state and trait measures of anxiety