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  • Title: Cardiovascular variability and introversion/extroversion, neuroticism and psychoticism.
    Author: Burdick JA, Van Dyck B, Von Bargen WJ.
    Journal: J Psychosom Res; 1982; 26(2):269-75. PubMed ID: 7077558.
    Abstract:
    Forty-eight subjects were measured during a 10 min rest period for pulse wave velocity (PWV) and heart rate (HR) level and variability, using a Cyborg BL 907 instrument. These subjects were also evaluated by means of the Eysenck Personality Questionnaire for I-E, N, P and L. These data were factor analyzed. Five factors were identified which were accounted for 80.6% of the variance. These factors were: 'cardiovascular lability', 'heart rate time trends', 'cardiovascular balance', 'sex effects' and 'self reports'. The EPQ measurements separated from the physiological measurements in the factor analysis and none were found to be significantly loaded on any physiological variables. On the other hand, significant physiological correlations were found with N. This study adds a possible blood pressure and heart rate descripter to N.
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