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Differential effects of alcohol and alcohol expectancy on risk‐taking during simulated driving
Author(s) -
Burian Scott E.,
Hensberry Rebecca,
Liguori Anthony
Publication year - 2003
Publication title -
human psychopharmacology: clinical and experimental
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.461
H-Index - 78
eISSN - 1099-1077
pISSN - 0885-6222
DOI - 10.1002/hup.473
Subject(s) - alcohol , expectancy theory , operationalization , poison control , task (project management) , psychology , medicine , social psychology , environmental health , engineering , chemistry , biochemistry , philosophy , systems engineering , epistemology
This study examined the separate and combined effects of alcohol (0.0 or 0.5 g/kg) and alcohol expectancies (none or 2–3 standard drinks) on risk‐taking using a simulated‐driving lane choice task. In this task, risk‐taking was operationalized as choosing a cone‐defined lane with a higher relative probability of hitting a cone. When alcohol was received but not expected, the probability of a risky lane choice increased compared with when alcohol was neither expected nor received. However, when subjects both expected and received alcohol, the probability of a risky lane choice was significantly decreased compared with when alcohol was neither expected nor received. These findings suggest that the knowledge of dose received can differentially influence the pharmacological effect of alcohol on decision‐making. Copyright © 2003 John Wiley & Sons, Ltd.