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Reproducibility of skeletal muscle vasodilatation responses to Stroop mental challenge over repeated sessions

Hamer, M; Boutcher, YN; Park, Y; Boutcher, SH; (2006) Reproducibility of skeletal muscle vasodilatation responses to Stroop mental challenge over repeated sessions. BIOL PSYCHOL , 73 (2) 186 - 189. 10.1016/j.biopsycho.2006.03.003.

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Abstract

Skeletal muscle blood flow responses to stress have implications for psychobiological disease pathways. An important assumption underlying psychophysiological studies relating stress reactivity with disease risk is that individuals are characterized by stable response profiles that can be reliably assessed using acute psychophysiological stress testing. We examined the reproducibility of forearm vasodilatation, blood pressure, and cardiac responses to a 2 min Stroop mental challenge over two repeated stress sessions that were on average 3.6 months apart. Participants were 21 healthy men and women (aged 21.8 +/- 3.7 years). Vasodilatation, blood pressure and heart rate responses displayed no habituation between sessions, although there was significantly greater cardiac parasympathetic involvement during the second testing session. Significant test-retest correlations between the sessions were observed for both forearm blood flow and heart rate reactivity. These findings demonstrate skeletal muscle vasodilatation responses to repeated stress are robust, so may be a useful psychophysiological indicator in studies of stress reactivity and disease risk. (c) 2006 Elsevier B.V. All rights reserved.

Type: Article
Title: Reproducibility of skeletal muscle vasodilatation responses to Stroop mental challenge over repeated sessions
DOI: 10.1016/j.biopsycho.2006.03.003
Keywords: forearm blood flow reactivity, habituation, reliability, psychosocial stress, stroop task, CARDIOVASCULAR REACTIVITY, BLOOD-PRESSURE, PSYCHOLOGICAL STRESS, HYPERTENSION, CATECHOLAMINES
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > Institute of Epidemiology and Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > Institute of Epidemiology and Health > Epidemiology and Public Health
URI: http://discovery.ucl.ac.uk/id/eprint/85311
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