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Stress Effects of Human-Computer Interactions.

Authors
Emurian-HH
Source
Baltimore Campus of Arts, Sciences, and Technology, The University of Maryland, Baltimore, Maryland 1991 Oct:58 pages
Link
NIOSHTIC No.
00203283
Abstract
Experiments were carried out to investigate the effects of human/computer interactions on indicators of stress. Men solved 50 database queries consecutively presented on a video display terminal (VDT). Each query required solution within 45 seconds of its initial presentation to avoid a reduction in potential earnings. A solution required the correct selection of three successive hypertext indices hierarchically structured from the query to the data answer. In a second study 16 men and 16 women solved 80 database queries under conditions of high or low work density. The results indicated that motivated time pressured work at a VDT will produce tonic elevations over a resting baseline in blood pressure, heart rate, and masseter electromyogram (EMG) activity in men and women who are experienced computer users. A relationship exists between the personality of the computer user and the magnitude of systolic blood pressure. Under conditions of 8 second constant and 8 second variable system response times (SRTs) in men, the constant and variable SRTs did not differentially affect physiological responses. Men and women showed higher systolic blood pressure during high density work than during low density work. Females showed reliably greater masseter EMG activity during high density work than during low density work.
Keywords
NIOSH-Grant; Cardiovascular-system-disorders; Keyboard-operators; Job-stress; Office-workers; Video-display-terminals; Physiological-response; Blood-pressure; Heart-rate;
Contact
None Univ of Maryland, Baltimore Univ of Md, Balt Cty Baltimore, MD 21228
Publication Date
19911003
Document Type
Final Grant Report;
Funding Amount
26630.00
Funding Type
Grant;
Fiscal Year
1992
NTIS Accession No.
PB92-136001
NTIS Price
A05
Identifying No.
Grant-Number-R01-OH-02614
NIOSH Division
OEP
Source Name
Baltimore Campus of Arts, Sciences, and Technology, The University of Maryland, Baltimore, Maryland
State
MD;
Performing Organization
University of Maryland Balt Prof School, Baltimore, Maryland
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