WSU Potent Marijuana Study

Washington State University has published a report in Scientific Reports, wherein researchers observed cannabis users over Zoom as they smoked high-potency cannabis flower or vaped concentrates they purchased themselves from cannabis dispensaries in Washington state and then gave the subjects a series of cognitive tests.

The researchers found no impact on the users’ performance on decision-making tests in comparison to a sober control group but did find some memory impairments related to free recall, source memory and false memories.

While the findings are in line with previous research on low-potency cannabis, this study is one of the few to investigate cannabis that contains much more than 10% THC, the plant’s main psychoactive ingredient.