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Autonomic cardiac control. III. Psychological stress and cardiac response in autonomic space as revealed by pharmacological blockades

BERNTSON, GARY G. ; CACIOPPO, JOHN T. ; BINKLEY, PHILIP F. ; UCHINO, BERT N. ; QUIGLEY, KAREN S. ; FIELDSTONE, ANNETTE

Psychophysiology, 1994-11, Vol.31 (6), p.599-608 [Periódico revisado por pares]

Oxford, UK: Blackwell Publishing Ltd

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Título:
Autonomic cardiac control. III. Psychological stress and cardiac response in autonomic space as revealed by pharmacological blockades
Autor: BERNTSON, GARY G. ; CACIOPPO, JOHN T. ; BINKLEY, PHILIP F. ; UCHINO, BERT N. ; QUIGLEY, KAREN S. ; FIELDSTONE, ANNETTE
Assuntos: Adult ; Anatomical correlates of behavior ; Arousal - drug effects ; Arousal - physiology ; Atropine - pharmacology ; Autonomic blockades ; Autonomic Nervous System - drug effects ; Autonomic Nervous System - physiology ; Autonomic space ; Behavioral psychophysiology ; Biological and medical sciences ; Chronotropic response ; Double-Blind Method ; Female ; Fundamental and applied biological sciences. Psychology ; Heart ; Heart - innervation ; Heart period ; Humans ; Metoprolol - pharmacology ; Parasympathetic ; Problem Solving - drug effects ; Problem Solving - physiology ; Psychology. Psychoanalysis. Psychiatry ; Psychology. Psychophysiology ; Reaction Time - drug effects ; Reaction Time - physiology ; Stress ; Stress, Psychological - complications ; Sympathetic
É parte de: Psychophysiology, 1994-11, Vol.31 (6), p.599-608
Notas: ark:/67375/WNG-4F47RNQP-T
ArticleID:PSYP599
istex:F3DAF7D604519008C5C0C4F1E336AF0602553F08
We thank Gaia Panina for her assistance in screening and monitoring subjects, the nursing staff of the Clinical Research Center for overseeing infusions, and Wendi Gardner, Shannon Reed, Nicole Chaput, Ali Mirzadeh, Lisa Gibson, and Beeky Schneider for their assistance in data collection and reduction.
This study was partly supported by Grant M01‐RR00034 from the National Center for Research Resources and Grant DBS9211483 from the National Science Foundation.
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Descrição: Behavioral contexts can evoke a variety of autonomic modes of response, characterized by reciprocal, coactive, or independent changes in the autonomic divisions. In the present study, we investigated the reactive autonomic control of the heart in response to psychological stressors, using quantitative methods for analyzing single and double autonomic blockades, and through the use of noninvasive indices based on heart period variability and systolic time intervals. Analysis of the effects of pharmacological blockades revealed an overall pattern of increased sympathetic and decreased parasympathetic control of the heart during speech stress, mental arithmetic, and a reaction‐time task. Unlike the classical reciprocal sympathetic‐parasympathetic response to orthostatic challenge, however, the responses of the autonomic branches to stress were uncorrelated. This reflected notable individual differences in the mode of autonomic response to stress, which had considerable stability across stress tasks. The putative noninvasive indices of sympathetic (preejection period) and parasympathetic (respiratory sinus arrhythmia) control changed in accord with the results of pharmacological blockades. Together, these results emphasize the substantial individual differences in the mode of autonomic response to stress, the advantages of a quantitative approach to analyzing blockade data, and the importance of validity estimates of blockade data.
Editor: Oxford, UK: Blackwell Publishing Ltd
Idioma: Inglês

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Autonomic cardiac control. III. Psychological stress and cardiac response in autonomic space as revealed by pharmacological blockades

BERNTSON, GARY G. ; CACIOPPO, JOHN T. ; BINKLEY, PHILIP F. ; UCHINO, BERT N. ; QUIGLEY, KAREN S. ; FIELDSTONE, ANNETTE

Oxford, UK: Blackwell Publishing Ltd

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