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Individual differences in physiological responses and type A behavior pattern.

K Oishi1, M Kamimura, T Nigorikawa

  • 1Health and Sports Sciences Institute, Senshu University. QWK02752@niftyserve.or.jp

Applied Human Science : Journal of Physiological Anthropology
|August 27, 1999
PubMed
Summary
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Type A behavior pattern (TABP) individuals show heightened sympathetic nerve activity under stress. Psychophysiological responses, particularly heart rate variability and respiratory rate, correlate with TABP traits during demanding cognitive tasks.

Area of Science:

  • Psychophysiology
  • Behavioral Science
  • Cardiology

Background:

  • Individual differences in psychophysiological responses are linked to behavioral patterns.
  • The Type A behavior pattern (TABP) is characterized by aggression, competitiveness, and time urgency.
  • Understanding the physiological underpinnings of TABP is crucial for stress management.

Purpose of the Study:

  • To investigate the relationship between individual psychophysiological responses and TABP.
  • To examine how TABP influences physiological reactions during various cognitive and auditory stressors.
  • To identify specific physiological markers associated with TABP traits.

Main Methods:

  • Sixteen healthy adults (10 males, 6 females) participated.
  • Psychophysiological measures included heart rate (HR), respiratory rate (RR), skin resistance response (SRR), and eyeblinks.

Related Experiment Videos

  • TABP tendency was assessed using the KG's Daily Life Questionnaire.
  • Participants underwent mental arithmetic, Uchida-Kraepelin test, music listening, and white noise exposure.

    • Main Results:

    • Mental arithmetic and the UK test increased HR, L/H ratio, and RR, while decreasing high frequency power (HF).
    • Eyeblinks increased during mental arithmetic and decreased during the UK test.
    • Significant correlations were found between TABP scores and the L/H ratio (MA: r=0.591, UK: r=0.577) and RR (MA: r=-0.576, UK: r=-0.511).
    • Individual differences in psychophysiological responses were substantial across all participants.

    Conclusions:

    • TABP is associated with distinct psychophysiological responses during stress.
    • The L/H ratio and RR emerged as significant physiological correlates of TABP.
    • Sympathetic nerve activity may be elevated in TABP individuals under stress compared to Type B individuals.