Effects of Chemical Protective Clothing, Exercise, and Diphenhydramine on Cognitive Performance During Sleep Deprivation

Williams, Diane; Englund, Carl E.; Sucec, A. A.; Overson, Mark D

doi:10.1207/s15327876mp0904_5

Cited by 8 publications

(6 citation statements)

References 31 publications

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“…The notion is similar to concepts advocated by Thorne et al (1983), Parsons (1990, 1992), and Williams et al (1997), and has its roots in information-theoretic notions of information transfer in skilled tasks. Such work is also rooted in Fitts's (1966) studies of the speed-accuracy trade-off in aimed movement, and has been applied to understand cognitive stress involved with alcoholism (see Jennings et al 1976;Rundell and Williams 1979).…”

Section: Time and Accuracy In The T3 Methodsmentioning

confidence: 53%

Adapting the task-taxon-task methodology to model the impact of chemical protective gear

Simpkins

Anno

Fallon

et al. 2011

Comput Math Organ Theory

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The Task-Taxon-Task method (Anno et al. DNA-TR-95-115, 1996) is a statistical modeling approach to predict performance decrements on behavioral tasks in response to various stressors. We describe the basics of the T3 method and our approach to adapting it to handle more acute stressors, which can require decomposition into task networks via logical or empirical analysis. We provide an illustrative example showing how the method can be used to account for performance decrements in manual tasks associated with wearing protective gloves. This illustration provides a substantive application in which the current T3 method can be augmented to account for performance decrements in a new sub-domain, while additionally providing lessons for extending the method to new stressors, performance domains, and behavior modeling systems.

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Section: Time and Accuracy In The T3 Methodsmentioning

confidence: 53%

Adapting the task-taxon-task methodology to model the impact of chemical protective gear

Simpkins

Anno

Fallon

et al. 2011

Comput Math Organ Theory

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“…Combined physical and mental fatigue arising from sustained military activities was largely detrimental to cognitive performance. Thirty-six hours of intermittent walking while carrying a heavy backpack increased simple reaction time by 10% and the number of lapses (excessively long responses) by 11% (Williams, Englund, Sucec, & Overson, 1997). The intermittent walking had no impact on reaction time or overall accuracy on a digit recall task but increased the number of lapses by 138% (Williams et al, 1997).…”

Section: Resultsmentioning

confidence: 99%

“…Thirty-six hours of intermittent walking while carrying a heavy backpack increased simple reaction time by 10% and the number of lapses (excessively long responses) by 11% (Williams, Englund, Sucec, & Overson, 1997). The intermittent walking had no impact on reaction time or overall accuracy on a digit recall task but increased the number of lapses by 138% (Williams et al, 1997). The number of lapses on a logical reasoning and a decoding task was also increased by 10% and 9% respectively, across the 36 hr (Williams et al, 1997).…”

Section: Resultsmentioning

confidence: 99%

Physiological Factors Which Influence Cognitive Performance in Military Personnel

et al. 2019

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Objective: To identify and detail physiological factors that influence cognition in military personnel. Background: Maintenance of cognitive and task performance is important under several scenarios, none more so than in a military context. Personnel are prepared for and trained to tolerate many of the stressors they encounter; however, consideration of stressors typically extends only as far as the physical, psychological, and environmental requirements of a given task. While considering these factors certainly characterizes the broader picture, several physiological states and traits can influence cognition and thus, should also be considered. Method: A systematic review of the electronic databases Medline (PubMed), EMBASE (Scopus), PsycINFO, and Web of Science was conducted from inception up to January 2019. Eligibility criteria included current military personnel, an outcome of cognition, and the assessment of a physiological factor. Results: The search returned 60,564 records, of which 60 were included in the review. Eleven studies examined the impact of demographic factors on cognition, 16 examined fatigue, 10 investigated nutrition, and 24 the impact of biological factors on cognitive performance. Conclusion: Factors identified as having a positive impact on cognition include aerobic fitness, nutritional supplementation, and visual acuity. In contrast, factors identified as having a negative impact include fatigue arising from sustained operations, dehydration, undernutrition, and an exaggerated physiological stress response to a cognitive task or a stressor. A further subset of these factors was considered modifiable. Application: The modifiable factors identified provide avenues for training and preparation to enhance cognition in ways previously unconsidered.

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“…These performance decrements could have a significant impact on military operations. Other research has also indicated that exercise while wearing chemical protective clothing (CPC) produces significant declines in cognitive performance (Williams, Englund, Sucec, & Overson, 1997). For logical reasoning they found exercise participants wearing CPC had more lapses and worked at a slower pace.…”

Section: Encapsulation Effectsmentioning

confidence: 99%

Performance Measures for Dismounted Warrior Encapsulation Effects

Mullins

Patton

Garrett

2006

Transformational Science and Technology for the Current and Future Force

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Research regarding the effects of encapsulation on soldier performance is critical for achieving effective mission performance as well as the survivability capabilities of dismounted soldiers of the Future Force. Soldier encapsulation is defined as enclosing the soldier's body in such a manner that all skin is protected from exposure to the elements of the battlefield. The objective of this research is to identify the effects of encapsulation on mission performance and to develop methods for further research on encapsulation effects of Future Force soldier systems. This research investigated the effects of three equipment configurations (baseline and two encapsulation configurations) on soldier performance during three mission related scenarios. Encapsulation effects on soldier's cognitive functioning and stress perceptions are discussed here. The characterization of cognitive performance and psychological state during military operations affords better understanding of human performance capabilities and opportunities to find predictors of future performance effectiveness.

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Effects of Chemical Protective Clothing, Exercise, and Diphenhydramine on Cognitive Performance During Sleep Deprivation

Cited by 8 publications

References 31 publications

Adapting the task-taxon-task methodology to model the impact of chemical protective gear

Adapting the task-taxon-task methodology to model the impact of chemical protective gear

Physiological Factors Which Influence Cognitive Performance in Military Personnel

Performance Measures for Dismounted Warrior Encapsulation Effects

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