Effect of Caffeine on Vigilance and Cognitive Performance During Extended Wakefulness

In this double-blind, randomized, 37-hr sleep deprivation study, 15 military pilot students received either placebo or 200 mg of caffeine twice a day. Vigilance was assessed 6 times and learning 4 times, both in a computerized environment. Motivation, mood, and sleepiness were monitored using self-r...

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Bibliographic Details
Published inThe International journal of aviation psychology Vol. 20; no. 2; pp. 144 - 159
Main Authors Kilpeläinen, Airi A., Huttunen, Kerttu H., Lohi, Jouni J., Lyytinen, Heikki
Format Journal Article
LanguageEnglish
Published Mahwah Taylor & Francis Group 01.04.2010
Lawrence Erlbaum Associates, Inc
Subjects
Caffeine
Cognition & reasoning
Emotions
Impact analysis
Learning
Military
Motivation
Pilots
Receiving
Sleep deprivation
Vigilance
Wakefulness
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Summary:In this double-blind, randomized, 37-hr sleep deprivation study, 15 military pilot students received either placebo or 200 mg of caffeine twice a day. Vigilance was assessed 6 times and learning 4 times, both in a computerized environment. Motivation, mood, and sleepiness were monitored using self-ratings. In the vigilance test, sleep deprivation decreased the amount of correct detections and increased reaction times in both groups. Furthermore, the number of false alarms increased in the placebo group. Participants receiving caffeine showed overconfidence, as they did not report any clear decline in subjectively assessed success despite impaired performance in the vigilance test.
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ISSN:1050-8414
1532-7108
DOI:10.1080/10508411003617847