Date of Award

1987

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Psychology

Program/Concentration

Psychology

Committee Director

Frederick G. Freeman

Committee Member

Glynn D. Coates

Committee Member

Raymond H. Kirby

Committee Member

Perry M. Duncan

Call Number for Print

Special Collections LD4331.P65G83

Abstract

The relationship between task load and cardiovascular measures was investigated during single- and dual-task performance. The results showed significant reductions in Heart Rate Variability and the Blood pressure component of the Power Spectral Density function during task performance. No significant changes in HR were seen from baseline to task. However, differences in directional responding between subjects seemed to have obscured these effects. When direction of the HR response was disregarded and absolute magnitude of response was analyzed, significant differences from baseline to task were seen. There was no difference in physiological responding from single- to dual-task trials. Future research examining instantaneous changes in HRV as a direct function of decrements in performance is suggested.

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DOI

10.25777/6ckv-zq24

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