Abstract:
OBJECTIVES:The aims of the study were to investigate the systematic classification of subsidiary behaviors during visual display terminal (VDT) work and discuss the interpretation of these behaviors through an interactive model of subsidiary behaviors, work performance and autonomic nerve activity. METHODS:Twelve university students were instructed to perform continuous 120-min English transcription tasks in a sedentary posture. Data on subsidiary behaviors, work performance (mean keystroke and mean error rates), and autonomic nervous system balance (log-transformed low frequency (LF) / high frequency (HF) ratio) were recorded every 5 min during VDT work. RESULTS:The subsidiary behaviors were categorized into 3 qualitatively independent factors: distractive behaviors against monotony (DBM), sleepiness-related behaviors (SRB), and habitual behaviors (HB). A cross-correlation analysis indicated that an increase of DBM, which is considered as a sign of workers' attempt to escape from monotonous task operations, was related to a decline in performance. A decrease in the LF/HF ratio was followed by SRB after 5 min passed (r=-0.57, p<0.05), eventually leading to a restriction of the deterioration in performance. An increase of DBM was predictive of an increase in errors (r=0.54, p<0.05), and a significant negative correlation (r=-0.46, p<0.05) between HB and autonomic nerve activity at 10 min after the appearance of HB was observed. CONCLUSION:It emerged from the results that the factor structure of subsidiary behaviors consists of 3 mutually independent factors. The interactive model suggests that subsidiary behaviors are possibly precursory signs of errors and changes in autonomic nervous system balance.
journal_name
J Occup Healthjournal_title
Journal of occupational healthauthors
Takanishi T,Ebara T,Murasaki GI,Kubo T,Tachi N,Itani T,Kamijima Mdoi
10.1539/joh.l9110subject
Has Abstractpub_date
2010-01-01 00:00:00pages
39-47issue
1eissn
1341-9145issn
1348-9585pii
JST.JSTAGE/joh/L9110journal_volume
52pub_type
杂志文章abstract:OBJECTIVES:The sum of urinary inorganic arsenic (iAs), monomethylarsonic acid (MMA), and dimethylarsinic acid (DMA) concentrations is used for the biological monitoring of occupational iAs exposure. Although DMA is a major metabolite of iAs, it is an inadequate index because high DMA levels are present in urine after s...
journal_title:Journal of occupational health
pub_type: 杂志文章
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更新日期:2016-05-25 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2017-07-27 00:00:00
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更新日期:2014-01-01 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2006-11-01 00:00:00
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pub_type: 杂志文章
doi:10.1539/joh.17-0102-RA
更新日期:2018-01-25 00:00:00
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更新日期:2017-07-27 00:00:00
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pub_type: 杂志文章
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更新日期:2003-03-01 00:00:00
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pub_type: 杂志文章
doi:10.1539/joh.15-0108-OA
更新日期:2016-06-16 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2008-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1539/joh.2017-0282-OA
更新日期:2018-11-27 00:00:00
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更新日期:2013-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2020-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1539/joh.11-0111-oa
更新日期:2011-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1539/joh.45.293
更新日期:2003-09-01 00:00:00
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pub_type: 杂志文章
doi:10.1539/joh.o10031
更新日期:2011-01-01 00:00:00
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更新日期:2006-09-01 00:00:00
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更新日期:2012-01-01 00:00:00
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pub_type: 杂志文章,meta分析,评审
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更新日期:2009-01-01 00:00:00
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更新日期:2003-07-01 00:00:00
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更新日期:2009-01-01 00:00:00
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journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1002/1348-9585.12137
更新日期:2020-01-01 00:00:00
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pub_type: 杂志文章,随机对照试验
doi:10.1002/1348-9585.12106
更新日期:2020-01-01 00:00:00
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journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.48.261
更新日期:2006-07-01 00:00:00
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journal_title:Journal of occupational health
pub_type: 杂志文章
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更新日期:2014-01-01 00:00:00