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Exaggerated psychophysiological reactivity: issues in quantification and reliability.

P Seraganian, J A Hanley, B J Hollander

    Journal of Psychosomatic Research
    |January 1, 1985
    PubMed
    Summary
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    Exaggerated physiological responses to mental stress in Type A men are reliable and consistent over time. This reactivity is measurable and predictable, suggesting a stable trait linked to coronary heart disease risk.

    Area of Science:

    • Cardiology
    • Psychophysiology
    • Behavioral Medicine

    Background:

    • Physiological reactivity to mental tasks is linked to coronary heart disease (CHD) risk.
    • Limited research exists on the reliability and quantification of exaggerated psychophysiological responses.

    Purpose of the Study:

    • To assess the reliability and consistency of exaggerated psychophysiological reactivity in Type A individuals.
    • To determine if challenging mental tasks elicit uniform reactivity across multiple physiological indices.

    Main Methods:

    • 32 male Type A managers (age 22-56) with no prior heart disease underwent three testing sessions.
    • Psychophysiological measures (heart rate, blood pressure, plasma catecholamines) were monitored during mental stress tasks.
    • Reactivity was assessed across screening, pretraining, and posttraining sessions.

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    Main Results:

    • Psychophysiological reactivity was a consistent trait across sessions for all five measures.
    • Reactivity measures showed significant correlations between screening and pretraining sessions.
    • Challenging tasks elicited comparable reactivity across four out of five measures.

    Conclusions:

    • Exaggerated psychophysiological reactivity is a reliable trait in selected Type A men.
    • Reactivity is insensitive to the passage of time and can be consistently elicited by various tasks.
    • Findings support the link between reliable exaggerated reactivity and potential CHD risk.