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Psychophysiological Methods Improving Performance Reliability in Monotonous Work Conditions


Authors: L. Kožená;  E. Frantík
Authors‘ workplace: Státní zdravotní ústav, Praha, ředitel doc. MUDr. Jaroslav Kříž, CSc. Centrum hygieny práce a nemocí z povolání, vedoucí prof. MUDr. Miroslav Cikrt, DrSc.
Published in: Pracov. Lék., , 1999, No. 1, s. 14-18.
Category:

Overview

Effect of four types of psychophysiological interventions (relaxation, physical exercise, and intensive light exposure before thetest, increased mental involvement in the test task) on characteristics of vigilance performance and subjective feelings wereexamined in a standard laboratory setting. A laboratory vigilance test in extremely monotonous conditions comprised of anacoustic discriminatory task and simultaneously performed continuous visual task. Three 90 minute sessions were conductedduring 6 morning hours of one day. A total of 118 student volunteers (47 males) were divided into five groups, one of which wasa control group.Short relaxation treatment did not prevent the usual performance deterioration but improved the subjective tolerance ofmonotony. Twenty knee-bends before session II or III had no positive influence. Twenty minute exposure to 750 lx of white lightdelayed the increase in signal omissions during the following session. An additional mental task which added more reasonand so provided extra stimulation to the monotonous test activity appeared to be the best prevention of detection failures and„minisleeps“.

Key words:
monotonous work, performance reliability, psychophysiological methods

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Labels
Hygiene and epidemiology Hyperbaric medicine Occupational medicine
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