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An activity-based non-linear regression model of Sopite syndrome and its effects on crew performance in high-speed vessel operations

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Author
Johnston, Jeremy M.
Date
2009-03
Advisor
McCauley, Michael E.
Second Reader
Buttrey, Samuel E.
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Abstract
Knepton, 1976). Since its discovery in 1976, no physically measurable parameter to quantify Sopite syndrome and its effect on performance has been established. Recent efforts to develop high-speed shallow-draft vessels coupled with increased automation and reduced manning place a premium on every crewmember. The manning modifications make it more important than ever to ensure that personnel readiness and performance degradation are accounted for in manning model calculations. This study quantifies Sopite syndrome by using non-linear regression to model activity as a function of time underway and linear regression to model performance. Performance is modeled using the concept of daily activity levels concurrently with ship's motion data, individual demographics and motion sickness questionnaires as input parameters. It was found that over an eight-day underway period, performance on a three-minute manual dexterity task degraded by 2 to 3 percent due to Sopite syndrome.
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http://hdl.handle.net/10945/4924
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    Sopite Syndrome in operational flight training 

    Flaherty, David E. (Monterey, California. Naval Postgraduate School, 1998-09-01);
    Sopite Syndrome is a poorly understood response to motion characterized by drowsiness, fatigue, sleep disturbances, and mood changes. It is distinct from "regular" motion sickness or common fatigue, and may affect the ...
  • Thumbnail

    The Effect of Mild Motion Sickness and Sopite Syndrome on Multitasking Cognitive Performance 

    Matsangas, Panagiotis (Monterey, California: Naval Postgraduate School, 2013-03);
    This research investigated the effects of mild motion sickness and sopite syndrome on multitasking cognitive performance. Fifty-one healthy individuals (45 males, 6 females) were recruited in three data collection periods ...
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    The effects of Sopite Syndrome on self-paced airsickness desensitization program 

    Flaherty, Michelle A. (Monterey, California. Naval Postgraduate School, 1998-09-01);
    The U. S. Navy implemented the Self-Paced Airsickness Desensitization (SPAD) program in 1989 for aviation students whose incidence of airsickness was not easily resolved. Some participants may have also experienced symptoms ...
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