@article{ref1,
title="Effect of cannabis use on cognitive functions and driving ability",
journal="Journal of clinical psychiatry",
year="1999",
author="Kurzthaler, Ilsemarie and Hummer, M. and Miller, Catherine and Sperner-Unterweger, Barbara and Günther, V. and Wechdorn, H. and Battista, H. J. and Fleischhacker, W. Wolfgang",
volume="60",
number="6",
pages="395-399",
abstract="BACKGROUND: Neither experimental nor epidemiologic approaches have so far given definitive answers to the question of the potential effect of cannabis on driving ability. METHOD: To shed more light on this topic, we conducted a placebo-controlled double-blind study including 60 healthy volunteers (a negative urine drug screening test was prerequisite). On the first day, baseline data were obtained from a physical examination and a psychological test battery for the investigation of visual and verbal memory as well as cognitive perceptual performance. On the second day, subjects received a regular cigarette or one containing 290 microg/kg body weight of tetrahydrocannabinol. Physical and psychological assessments were performed immediately (15 minutes) after subjects smoked their cigarettes. Twenty-four hours later, physical and psychological examinations were repeated. RESULTS AND CONCLUSION: Our results suggest that perceptual motor speed and accuracy, 2 very important parameters of driving ability, seem to be impaired immediately after cannabis consumption.  Keywords: Cannabis impaired driving <p /> <p>Language: en</p>",
language="en",
issn="0160-6689",
doi="",
url="http://dx.doi.org/"
}