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Finally, some good news related to fatigue


In a literature review, noted human factors scholar Christopher Wickens’ discovered that while sleep disruption does degrade cognitive task performance, the degradation is not as severe as it is for simpler tasks (Wickens, Christopher D., Shaun D. Hutchins, Lila Laux, and Angelia Sebok, “The Impact of Sleep Disruption on Complex Cognitive Tasks: A Meta-Analysis” Human Factors 57.6 (2015): 930-946). This is true for sleep reduction and circadian induced deprivation. However, simpler tasks include such things as vigilance (detecting a problem) and attention-switching (focusing on a new problem). So while console operators who are fatigued may not be as much at risk for not being able to diagnose an upset as we once thought, they will still be less likely to detect the upset than a non-fatigued operator.

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This year's Fall meeting for the Center for Operator Performance will be October 24-26 in Corpus Christi. For more information, please contact Lisa Via. Guests are always welcome!


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Take our short survey on operator span of control. Click here (new window)

David Strobhar's book, "Human Factors in Process Plant Operation," is now available in both hardcover and Kindle e-book.

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