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UI studies impact of marijuana on driving

UI studies impact of marijuana on driving

Sara Diedrich | 2015.06.23

A new study conducted at the University of Iowa’s National Advanced Driving Simulator (NADS) has found drivers who use alcohol and marijuana together weave more on a virtual roadway than drivers who use either substance independently. However, the cocktail of alcohol and marijuana does not double the effect of the impairment.

“What we saw was an additive effect, not a synergistic effect, when we put them together,” says Tim Brown, associate research scientist at NADS and co-author of the study. “You get what you expect if you take alcohol and cannabis and merge them together.”

UI studies impact of marijuana on driving






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