<div class="description">
<p>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.
</p>
<br>Subjects: Motion sickness; Operations research</div>
<div class="fn value">
Johnston, Jeremy M.</div>
Internet Archive identifier