|Document ID (ISN)||112064|
|ISSN - Serial title
||0003-6870 - Applied Ergonomics
|Convention or series no.
||Ferguson S.A., Paech G.M., Dorrian J., Roach G.D., Jay S.M.
||Performance on a simple response time task: Is sleep or work more important for miners?
||2011, Vol.42, p.210-213. Illus. 35 ref.
||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.
||hours of work; shift work; cognitive performance; sleep pattern; mining industry
||Australia; vigilance; subjective assessment; cross-sectional study; statistical evaluation
||D - Periodical articles
||Mines and quarries
Ergonomics and work organization
|Broad subject area(s)
Hours of work
Mining and quarrying