High-Potency Cannabis & Concentrates Show Distinct Memory Effects: WSU Study
A recent study conducted at Washington State University (WSU) has shed light on the cognitive effects of high-potency cannabis and cannabis concentrates. The research, one of the few to focus on these products, found both similarities and differences in their impact on memory compared to traditional cannabis flower.
The study, approved by WSU's Division of the Office of the Attorney General and the university's research ethics board, involved 80 participants divided into four groups. Two groups consumed cannabis flower, one with CBD and one without, while another group used cannabis concentrates with over 60% THC. The fourth group served as a sober control.
Contrary to expectations, cannabis concentrates performed similarly to smoked cannabis flower in terms of cognitive impairment. However, CBD-rich cannabis flower impaired verbal free recall, while cannabis without CBD and concentrates impaired source memory. Some memory impairments were observed in all cannabis-using groups, including free recall, source memory, and false memories. Notably, no impact on decision-making was found compared to the sober control group.
The study, conducted remotely via Zoom to comply with federal guidelines, found that all cannabis-using groups performed poorly on a false memory test. Participants were not reimbursed for their cannabis purchases, instead receiving Amazon gift cards for their time.
The study, a departure from the University of Mississippi's historical monopoly on cannabis research, suggests that high-potency cannabis and cannabis concentrates may have distinct effects on memory compared to traditional cannabis flower. Further research is needed to fully understand these effects and their implications for public health and policy.
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