Eysenck's arousal theory of introversion-extraversion: a converging measures investigation.

Convergent electroencephalographic, performance, and psychometric measures of arousal were used to test predictions based on H. J. Eysenck's (1967) theory. Twelve introverts and 12 extraverts had their brainstem auditory evoked responses (BAERs) monitored under 3 levels of caffeine administration (0.0, 1.5, and 3.0 mg/kg) and 3 levels of task demand (resting, simple response time, and complex response time). Results revealed a decrease in the latency of Wave V of the BAER as a function of personality, with introverts evidencing significantly shorter latency of Wave V as compared with extraverts. Faster conduction time between Waves I-III and I-V were also found in introverts. Caffeine at either the 1.5 or 3.0 mg/kg level was associated with decreased latency of Wave V, compared with the placebo condition. No personality differences in subjective arousal or reaction time performance were found across any of the conditions.

Etiological attributions, responsibility attributions, and marital adjustment in erectile dysfunction patients.

The relationships between responsibility attributions, etiological attributions (psychogenically versus biogenically caused), and marital adjustment were explored in 30 erectile dysfunction patients and their partners via the Attributions Regarding Sexual Dysfunction Questionnaire and the Dyadic Adjustment Scale. Exploration of responsibility attributions yielded a consistent pattern of blaming the identified patient. This pattern is discussed in terms of two perspectives in attributional theory: the "self-serving bias" and the "just world" hypothesis. Etiological attributions were not relevant to actual diagnosis, marital adjustment, choice of treatment professional, or expectations for treatment outcome. Partner agreement regarding etiology was not related to actual cause or marital adjustment.