Samenvatting
For this experimental study on cannabis and simulated car driving 54 volunteers were tested for their car driving capacity before and after taking doses of THC and a placebo. The study demonstrates that THC, because of its inhibiting as well as stimulating effects, influences psychological and physiological functions important for driving different from alcohol. Prolongation of reaction time and increased frequency of wrong and inadequate responses were observed as well as a disturbance in the smooth automatism, which is so important in car driving.