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Cardiovascular and neuroendocrine responses to extended laboratory challenge
The purpose of this study was to examine the effects of a 2-hour laboratory challenge on heart rate, blood pressure, catecholamines, and cortisol; and investigate the contribution of the physical act of speaking on both neuroendocrine and cardiovascular measures. Using a within-subjects design, 14 s...
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Published in: | Psychosomatic medicine 1993-11, Vol.55 (6), p.497-504 |
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container_issue | 6 |
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container_title | Psychosomatic medicine |
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creator | MCCANN, B. S CARTER, J VAUGHAN, M RASKIND, M WILKINSON, C. W VEITH, R. C |
description | The purpose of this study was to examine the effects of a 2-hour laboratory challenge on heart rate, blood pressure, catecholamines, and cortisol; and investigate the contribution of the physical act of speaking on both neuroendocrine and cardiovascular measures. Using a within-subjects design, 14 subjects were tested individually during two separate laboratory sessions. During one session, subjects engaged in two cognitively demanding tasks for 2 hours. During the other session, subjects executed the verbal demands of the tasks for 2 hours, but cognitive demands were absent. During both sessions, blood pressure and heart rate were measured and arterialized blood samples were obtained for the measurement of epinephrine, norepinephrine, and cortisol. Subjects demonstrated significantly greater increases in systolic blood pressure diastolic blood pressure, heart rate, epinephrine, and cortisol during the cognitively challenging session than during the control session. It is concluded that sustained elevations in cardiovascular and neuroendocrine measures can be achieved in the laboratory, and that the effects of such tasks cannot be attributed solely to the physical demands of speaking. Implications for the measurement of circulating catecholamines and cortisol during laboratory studies are discussed. |
doi_str_mv | 10.1097/00006842-199311000-00005 |
format | article |
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S ; CARTER, J ; VAUGHAN, M ; RASKIND, M ; WILKINSON, C. W ; VEITH, R. C</creator><creatorcontrib>MCCANN, B. S ; CARTER, J ; VAUGHAN, M ; RASKIND, M ; WILKINSON, C. W ; VEITH, R. C</creatorcontrib><description>The purpose of this study was to examine the effects of a 2-hour laboratory challenge on heart rate, blood pressure, catecholamines, and cortisol; and investigate the contribution of the physical act of speaking on both neuroendocrine and cardiovascular measures. Using a within-subjects design, 14 subjects were tested individually during two separate laboratory sessions. During one session, subjects engaged in two cognitively demanding tasks for 2 hours. During the other session, subjects executed the verbal demands of the tasks for 2 hours, but cognitive demands were absent. During both sessions, blood pressure and heart rate were measured and arterialized blood samples were obtained for the measurement of epinephrine, norepinephrine, and cortisol. Subjects demonstrated significantly greater increases in systolic blood pressure diastolic blood pressure, heart rate, epinephrine, and cortisol during the cognitively challenging session than during the control session. It is concluded that sustained elevations in cardiovascular and neuroendocrine measures can be achieved in the laboratory, and that the effects of such tasks cannot be attributed solely to the physical demands of speaking. Implications for the measurement of circulating catecholamines and cortisol during laboratory studies are discussed.</description><identifier>ISSN: 0033-3174</identifier><identifier>EISSN: 1534-7796</identifier><identifier>DOI: 10.1097/00006842-199311000-00005</identifier><identifier>PMID: 8310110</identifier><identifier>CODEN: PSMEAP</identifier><language>eng</language><publisher>Philadelphia, PA: Lippincott Williams & Wilkins</publisher><subject>Adult ; Arousal - physiology ; Attention - physiology ; Behavioral psychophysiology ; Biological and medical sciences ; Blood Pressure - physiology ; Epinephrine - blood ; Fundamental and applied biological sciences. Psychology ; Heart Rate - physiology ; Hormones and behavior ; Humans ; Hydrocortisone - blood ; Male ; Middle Aged ; Neurosecretory Systems - physiology ; Norepinephrine - blood ; Problem Solving - physiology ; Psychology. Psychoanalysis. Psychiatry ; Psychology. 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During both sessions, blood pressure and heart rate were measured and arterialized blood samples were obtained for the measurement of epinephrine, norepinephrine, and cortisol. Subjects demonstrated significantly greater increases in systolic blood pressure diastolic blood pressure, heart rate, epinephrine, and cortisol during the cognitively challenging session than during the control session. It is concluded that sustained elevations in cardiovascular and neuroendocrine measures can be achieved in the laboratory, and that the effects of such tasks cannot be attributed solely to the physical demands of speaking. Implications for the measurement of circulating catecholamines and cortisol during laboratory studies are discussed.</description><subject>Adult</subject><subject>Arousal - physiology</subject><subject>Attention - physiology</subject><subject>Behavioral psychophysiology</subject><subject>Biological and medical sciences</subject><subject>Blood Pressure - physiology</subject><subject>Epinephrine - blood</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Heart Rate - physiology</subject><subject>Hormones and behavior</subject><subject>Humans</subject><subject>Hydrocortisone - blood</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Neurosecretory Systems - physiology</subject><subject>Norepinephrine - blood</subject><subject>Problem Solving - physiology</subject><subject>Psychology. Psychoanalysis. Psychiatry</subject><subject>Psychology. 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subjects | Adult Arousal - physiology Attention - physiology Behavioral psychophysiology Biological and medical sciences Blood Pressure - physiology Epinephrine - blood Fundamental and applied biological sciences. Psychology Heart Rate - physiology Hormones and behavior Humans Hydrocortisone - blood Male Middle Aged Neurosecretory Systems - physiology Norepinephrine - blood Problem Solving - physiology Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Social Environment Stress, Psychological - blood Stress, Psychological - complications |
title | Cardiovascular and neuroendocrine responses to extended laboratory challenge |
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