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Mental workload measurement for emergency operating procedures in digital nuclear power plants

Gao, Qin ; Wang, Yang ; Song, Fei ; Li, Zhizhong ; Dong, Xiaolu

Ergonomics, 2013-07, Vol.56 (7), p.1070-1085 [Periódico revisado por pares]

London: Taylor & Francis Group

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Título:
Mental workload measurement for emergency operating procedures in digital nuclear power plants
Autor: Gao, Qin ; Wang, Yang ; Song, Fei ; Li, Zhizhong ; Dong, Xiaolu
Assuntos: Adult ; Arousal ; Biological and medical sciences ; Blinking ; blinks ; Emergencies - psychology ; Ergonomics. Human factors ; Fundamental and applied biological sciences. Psychology ; Heart Rate ; HRV ; Humans ; Male ; Mental health ; mental workload ; Nuclear Power Plants ; Occupational psychology ; operation procedure ; Organizational Policy ; Parasympathetic Nervous System - physiology ; Physiology ; Psychology. Psychoanalysis. Psychiatry ; Psychology. Psychophysiology ; Pupil - physiology ; pupil dilation ; Stress, Psychological - physiopathology ; Sympathetic Nervous System - physiology ; Workload - psychology ; Workloads ; Young Adult
É parte de: Ergonomics, 2013-07, Vol.56 (7), p.1070-1085
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: Mental workload is a major consideration for the design of emergency operation procedures (EOPs) in nuclear power plants. Continuous and objective measures are desired. This paper compares seven mental workload measurement methods (pupil size, blink rate, blink duration, heart rate variability, parasympathetic/sympathetic ratio, total power and (Goals, Operations, Methods, and Section Rules)-(Keystroke Level Model) GOMS-KLM-based workload index) with regard to sensitivity, validity and intrusiveness. Eighteen participants performed two computerised EOPs of different complexity levels, and mental workload measures were collected during the experiment. The results show that the blink rate is sensitive to both the difference in the overall task complexity and changes in peak complexity within EOPs, that the error rate is sensitive to the level of arousal and correlate to the step error rate and that blink duration increases over the task period in both low and high complexity EOPs. Cardiac measures were able to distinguish tasks with different overall complexity. The intrusiveness of the physiological instruments is acceptable. Finally, the six physiological measures were integrated using group method of data handling to predict perceived overall mental workload. Practitioner Summary: The study compared seven measures for evaluating the mental workload with emergency operation procedure in nuclear power plants. An experiment with simulated procedures was carried out, and the results show that eye response measures are useful for assessing temporal changes of workload whereas cardiac measures are useful for evaluating the overall workload.
Editor: London: Taylor & Francis Group
Idioma: Inglês

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Mental workload measurement for emergency operating procedures in digital nuclear power plants

Gao, Qin ; Wang, Yang ; Song, Fei ; Li, Zhizhong ; Dong, Xiaolu

London: Taylor & Francis Group

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