An Australian study has found that while medical cannabis containing THC does not impact processing speed, attention, or inhibitory control in drivers, it may reduce cognitive flexibility and executive function. Researchers from the University of Queensland and University of the Sunshine Coast tested 78 participants who used either cannabis oil or vaporised flower. After cannabis use, both groups showed significant reductions in TMT B performance-a measure of cognitive flexibility-with the oil group also showing a reduced TMT ratio.

The study highlights that while some cognitive functions remain unaffected, acute cannabis use could impair certain executive functions, warranting further research. This is particularly relevant as Australian law prohibits driving with any detectable THC, regardless of prescription status. The findings add to ongoing debates about road safety and medical cannabis regulations. Read the full article at Hemp Gazette.