Evaluation of myocardial and peripheral vascular responses during reaction time, mental arithmetic, and cold pressor tasks

M. T. Allen, P. A. Obrist, A. Sherwood, M. D. Crowell

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

The primary purpose of this study was to examine the covariation of cardiac output and forearm blood flow during reaction time, mental arithmetic, and cold pressor tasks. Cardiac output was indexed using impedance cardiography, whereas impedance venous occlusion plethysmography was used to index forearm blood flow. Cardiac output increased significantly over resting values in all three tasks, but the pattern of these increases differed. Large heart rate increases during mental arithmetic and cold pressor tasks more than offset stroke volume decreases; the increases in the reaction time task were due to relatively smaller heart rate increases with stroke volume augmentation. For forearm blood flow, all task levels were higher than resting levels, but only mental arithmetic levels were statistically higher. The correlation between cardiac output and forearm blood flow change was significant for the reaction time task, but not for the mental artihmetic or cold pressor tasks.

Original languageEnglish (US)
Pages (from-to)648-656
Number of pages9
JournalPsychophysiology
Volume24
Issue number6
StatePublished - 1987
Externally publishedYes

Fingerprint

Forearm
Cardiac Output
Blood Vessels
Stroke Volume
Heart Rate
Impedance Cardiography
Plethysmography
Electric Impedance

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)
  • Psychology(all)
  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology

Cite this

Evaluation of myocardial and peripheral vascular responses during reaction time, mental arithmetic, and cold pressor tasks. / Allen, M. T.; Obrist, P. A.; Sherwood, A.; Crowell, M. D.

In: Psychophysiology, Vol. 24, No. 6, 1987, p. 648-656.

Research output: Contribution to journalArticle

Allen, M. T. ; Obrist, P. A. ; Sherwood, A. ; Crowell, M. D. / Evaluation of myocardial and peripheral vascular responses during reaction time, mental arithmetic, and cold pressor tasks. In: Psychophysiology. 1987 ; Vol. 24, No. 6. pp. 648-656.
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