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BACKGROUND Neither experimental nor epidemiologic approaches have so far given definitive answers to the question of the potential effect of cannabis on driving ability. METHODS 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. CONCLUSIONS Our results suggest that perceptual motor speed and accuracy, 2 very important parameters of driving ability, seem to be impaired immediately after cannabis consumption.
I Kurzthaler, and
M Hummer, and
C Miller, and
B Sperner-Unterweger, and
V Günther, and
H Wechdorn, and
H J Battista, and
W W Fleischhacker
January 2002,
Ugeskrift for laeger,
I Kurzthaler, and
M Hummer, and
C Miller, and
B Sperner-Unterweger, and
V Günther, and
H Wechdorn, and
H J Battista, and
W W Fleischhacker
April 2021,
Current opinion in psychology,
I Kurzthaler, and
M Hummer, and
C Miller, and
B Sperner-Unterweger, and
V Günther, and
H Wechdorn, and
H J Battista, and
W W Fleischhacker
June 1979,
The Indian journal of medical research,
I Kurzthaler, and
M Hummer, and
C Miller, and
B Sperner-Unterweger, and
V Günther, and
H Wechdorn, and
H J Battista, and
W W Fleischhacker
July 2015,
Forensic science international,
I Kurzthaler, and
M Hummer, and
C Miller, and
B Sperner-Unterweger, and
V Günther, and
H Wechdorn, and
H J Battista, and
W W Fleischhacker
April 1978,
The Medical journal of Australia,
I Kurzthaler, and
M Hummer, and
C Miller, and
B Sperner-Unterweger, and
V Günther, and
H Wechdorn, and
H J Battista, and
W W Fleischhacker
January 2023,
Traffic injury prevention,
I Kurzthaler, and
M Hummer, and
C Miller, and
B Sperner-Unterweger, and
V Günther, and
H Wechdorn, and
H J Battista, and
W W Fleischhacker
September 1978,
Drug and alcohol dependence,
I Kurzthaler, and
M Hummer, and
C Miller, and
B Sperner-Unterweger, and
V Günther, and
H Wechdorn, and
H J Battista, and
W W Fleischhacker
October 2022,
Systematic reviews,
I Kurzthaler, and
M Hummer, and
C Miller, and
B Sperner-Unterweger, and
V Günther, and
H Wechdorn, and
H J Battista, and
W W Fleischhacker
January 1987,
International disability studies,
I Kurzthaler, and
M Hummer, and
C Miller, and
B Sperner-Unterweger, and
V Günther, and
H Wechdorn, and
H J Battista, and
W W Fleischhacker
January 2024,
Drug and alcohol dependence,
