Food Components to Enhance Performance An Evaluation of Potential Performance-Enhancing Food Components for Operational Rations (1994) / Chapter Skim
Currently Skimming:
7. The Effects of Sleep Deprivation on Performance During Continuous Combat Operations
7. The Effects of Sleep Deprivation on Performance During Continuous Combat Operations
Pages 127-136
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 127... ...
National Academy Press 7 The Effects of Sleep Deprivation on Performance During Continuous Combat Operations Gregory Belenky~, David M Penetar, David Thorne, Kathryn Popp, John Leu, Maria Thomas, Helen Sing, Thomas Balkin, Nancy Weser~sten, and Daniel Redmond INTRODUCTION Good cognitive performance is central to successful combat operations.
|
From page 128... ...
70 80 FIGURE 7-1 Effect of 72 h of total sleep deprivation on cognitive performance of normal volunteer subjects. The combined curve is decomposed into circadian variability and a negatively accelerating decrement in performance.
|
From page 129... ...
Continuous combat is characterized by brief fragmented sleep. In anecdotal accounts of actual combat operations and objective studies of simulated combat operations, brief, fragmented sleep is the rule rather than the exception.
|
From page 130... ...
Anecdotally, cognitive performance in Ranger candidates was marginal, with frequent episodes of what the Rangers call "droning," in which candidates can put one foot in front of another and respond if challenged but have difficulty grasping their situation or acting on their own initiative. Investigators in our research group have studied sleep during simulated armored and mechanized infantry operations at the National Training Center (NTC)
|
From page 131... ...
FIGURE 7-2 Effect of 4, 5, 6, or 7 h of sleep each night on artillery company performance during 21 days of continuous operations. These are modeling data derived from the Army Unit Resiliency Analysis model of artillery company performance.
|
From page 132... ...
Later, without a current situation map, they would fire without hesitation, regardless of the nature of the target. Early in the simulation, when the investigators called in two concurrent fire missions and called for fire on a preplanned target, they would, having already plotted and derived information for the preplanned target, fire on all three quickly and accurately.
|
From page 133... ...
For reasons that remain obscure, even though the debriefing occurred soon after the event, these hot spots were simply observed until they ran into the screen line, at which point they resolved themselves into six Iraqi armored personnel carriers. This was not an attack; the Iraqis were still in column and were presumably just as surprised as the Americans.
|
From page 134... ...
Links, and H Wagner 1988 Positron emission tomography measurement of human regional cerebral glucose utilization following 48 hours of sleep deprivation.
|
From page 135... ...
Sing, F.W. Hegge 1983 Plumbing human performance limits during 72 hours of high task load.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.