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Journal Article

Citation

Marsden G, Leach J. Ergonomics 2000; 43(1): 17-26.

Affiliation

Department of Psychology, University of Lancaster, UK.

Copyright

(Copyright © 2000, Informa - Taylor and Francis Group)

DOI

unavailable

PMID

10661690

Abstract

Twelve experienced navigators participated in an experiment to determine the effects of alcohol, caffeine, and an alcohol+caffeine mixture on performance during the following tasks: visual search, the search and location of items on a navigational chart (chartsearch) and the solving of maritime navigational problems. Alcohol (75 ml) produced impairment in performance on visual search (p<0.05) and navigational problem-solving (p<0.01). Caffeine was found to enhance performance on visual search (p<0.05) but not on the chartsearch, although a significant correlation was found between performance on the two tests (p<0.05). Caffeine was not found to improve the accuracy of navigational problem-solving (p>0.05). Neither alcohol nor caffeine had any significant effect on the speed of problem-solving (p>0.05).


Language: en

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