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Suppression of sleepiness in drivers: combination of caffeine with a short nap.
- Source :
-
Psychophysiology . Nov1997, Vol. 34 Issue 6, p721-725. 5p. - Publication Year :
- 1997
-
Abstract
- Previous research has shown that caffeine and a<15-min nap effectively and separately reduce sleepiness in drivers for 1 hr. in the present study, we examined in 12 sleepy individuals the treatments combined, taken during a 30-min break, prior to a longer (2 hr) continuous monotonous afternoon drive in a car simulator. Nonnap comparisons were 200 mg caffeine only and placebo. For placebo, driving incidents, subjective and electroencephalographic measures of sleepiness all reflected a mid-afternoon peak. This peek was significantly reduced by caffeine and eliminated by the combined treatment, which reduced incidents to 9% of placebo levels versus 34% of placebo levels for caffeine alone. Naps comprising "nonsleep dozing" were still effective. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DROWSINESS
*CAFFEINE
*MOTOR vehicle driving
*ELECTROENCEPHALOGRAPHY
Subjects
Details
- Language :
- English
- ISSN :
- 00485772
- Volume :
- 34
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Psychophysiology
- Publication Type :
- Academic Journal
- Accession number :
- 10975531
- Full Text :
- https://doi.org/10.1111/j.1469-8986.1997.tb02148.x