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Document ID (ISN)54872
CIS number 90-2079
ISSN - Serial title 0549-4974 - Japanese Journal of Ergonomics - Ningen Kogaku
Year 1989
Convention or series no.
Author(s) Itoh K., Enkawa T., Akiba M.
Title Measurement method for general fatigue based on attenuation of channel capacity in visually cognitive work
Original title Shikaku-ninchi-sagyō ni okeru "channel capacity" no gensui ni motozuita seishinhirō sokuteihō [in Japanese]
Bibliographic information Apr. 1989, Vol.25, No.2, p.87-100. 27 ref.
Abstract As measurement methods for fatigue due to video display terminal (VDT) use, eye accommodation time, CFF (critical flicker fusion frequency) and subjective ratings are frequently used. However, these methods have limitations. This research focuses on general fatigue, rather than visual fatigue. A measurement method for general fatigue in visual cognitive work with VDT's is proposed. The proposed method is to measure the decrease of the channel capacity of the central nervous system. The method was applied to various tasks and work environments in 3 experiments. It was able to detect differing degrees of fatigue among various work environments. It seems to be appropriate as a measurement method for general fatigue in actual VDT work.
Descriptors (primary) cognitive performance; fatigue assessment; visual display terminals
Descriptors (secondary) mental workload; description of technique; human experiments
Document type D - Periodical articles
Country / State or ProvinceJapan
Subject(s) Occupational physiology
Broad subject area(s) Physiology, ergonomics
Browse category(ies) Visual display terminals (VDTs)
Office work