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ReferencesNavigation arrowAuthorsNavigation arrowEdward M. Hitchcock
Jun 19

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Edward M. Hitchcock

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Publications by Edward M. Hitchcock (bibliography)

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1994
 
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Morrison, Jeffrey G., Forster, Estrella, Hitchcock, Edward M., Barba, Charles A., Santarelli, Thomas P. and Scerbo, Mark W. (1994): Cumulative Effects of +Gz on Cognitive Performance. In: Proceedings of the Human Factors and Ergonomics Society 38th Annual Meeting 1994. pp. 46-50.

“A study is described which examines the interaction of two of the most salient stressors found in the tactical aviation cockpit: 1) highly demanding decision-making tasks, and 2) intermittent periods of high G. Addressing this issue is critical because: 1) it is probable that physiological stressors such as G may have serious ramifications on pilots' abilities to perform complex cognitive tasks; 2) there may be different impacts of G on different types of cognitive tasks, and the impact of these deficits may be correlated with the cumulative amount of time a pilot has spent under G.; 3) it is not clear that donning protective gear will have an effect on cognitive task performance; and 4) there are no data to suggest how long cognitive decrements due to exposure to physiological stressors will last. A general approach is described for evaluating the cumulative effects of physiological stressors (e.g., G) on cognitive task performance in a within-subjects experimental design. A PC-based task suite was used incorporating three concurrently performed tasks: a compensatory tracking task, a resource management task, and a system monitoring task. Results indicated that performance across the experimental conditions was highly variable. Preliminary results demonstrated that: 1) even low-level increases in G can be disruptive to subject performance, 2) there are cumulative decrements in task performance during G, and 3) if stable performance on tasks is required, training for complex task performance must take place in the presence of salient physiological stressors.”

© All rights reserved Morrison et al. and/or Human Factors Society

 
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Jun 19

“ ... there are no simple 'right' answers for most web design questions (at least not for the important ones). What works is good, integrated design that fills a need--carefully thought out, well executed, and tested. ”

-- Steve Krug, Don't Make Me Think, p. 136

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

Latest books

The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad

 
Start reading

The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam

 
Start reading
 
 

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