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Document ID (ISN)112064
CIS number 11-0734
ISSN - Serial title 0003-6870 - Applied Ergonomics
Year 2011
Convention or series no.
Author(s) Ferguson S.A., Paech G.M., Dorrian J., Roach G.D., Jay S.M.
Title Performance on a simple response time task: Is sleep or work more important for miners?
Bibliographic information 2011, Vol.42, p.210-213. Illus. 35 ref.
Abstract The purpose of this study was to investigate the impact of work- and sleep-related factors on an objective measure of response time in a field setting. Thirty-five mining operators working 12h shifts completed daily sleep and work diaries, wore activity monitors continuously and completed palm-based psychomotor vigilance tests at the start and end of each shift. Linear mixed models were used to test the main effects on response time of roster, timing of test, sleep history and prior wake. The time at which the test occurred was a significant predictor of response time, with the end of night shifts being associated with significantly slower response times than the start of night shifts, and the start or end of day shifts. Further, the amount of sleep obtained in the 24h prior to the test was also a significant predictor of response time. The results suggest that the end of night shift is associated with changes in response time indicative of performance impairments. The immediate sleep history was also predictive of changes in response time, with lower amounts of prior sleep related to slower response times. The current data provides further evidence that sleep is a primary mediator of performance, independent of roster pattern.
Descriptors (primary) hours of work; shift work; cognitive performance; sleep pattern; mining industry
Descriptors (secondary) Australia; vigilance; subjective assessment; cross-sectional study; statistical evaluation
Document type D - Periodical articles
Subject(s) Mines and quarries
Ergonomics and work organization
Occupational physiology
Broad subject area(s) Physiology, ergonomics
Browse category(ies) Vigilance
Hours of work
Fatigue
Mining and quarrying