Cardiovascular reactivity and adaptation to recurrent psychological stress: The moderating effects of evaluative observation
Autor: | Jim Blascovich, Robert M. Kelsey, Stefan Wiens, Joe Tomaka, Christopher L. Leitten, Tamera R. Schneider |
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Rok vydání: | 2000 |
Předmět: |
medicine.diagnostic_test
Endocrine and Autonomic Systems Cognitive Neuroscience General Neuroscience Experimental and Cognitive Psychology Stress appraisal Appraisal theory Stimulus (physiology) medicine.disease_cause Developmental psychology Impedance cardiography Neuropsychology and Physiological Psychology Blood pressure Developmental Neuroscience Neurology medicine Psychological stress Habituation Psychology Biological Psychiatry Cardiovascular reactivity |
Zdroj: | Psychophysiology. 37:748-756 |
ISSN: | 1469-8986 0048-5772 |
DOI: | 10.1111/1469-8986.3760748 |
Popis: | The impact of evaluative observation on cardiovascular reactivity and adaptation to recurrent psychological stress was evaluated in 162 undergraduate men and women. All participants performed three mental arithmetic tasks with or without evaluative observation. Impedance cardiographic, blood pressure, task performance, and stress appraisal measures were recorded for each task. Evaluative observation moderated the effects of task repetition on cardiac reactivity but not vascular reactivity. The introduction of evaluative observation disrupted cardiac adaptation, resulting in a resurgence of beta-adrenergic cardiac reactivity (p < .005), whereas the removal of evaluative observation promoted cardiac adaptation. Evaluative observation also increased stress appraisals and slowed task performance. The results support the dual process theory of habituation, rather than stimulus comparator theory, but only partially support cognitive appraisal theory. |
Databáze: | OpenAIRE |
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