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).
| Original language | English |
|---|---|
| Pages (from-to) | 17-26 |
| Journal | Ergonomics |
| Volume | 43 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2000 |
| Externally published | Yes |
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