A recent study published in JAMA Network Open has shed light on how cannabis affects the brain, particularly during cognitive tasks. Researchers analyzed over 1,000 young adults and found that both heavy lifetime use and recent cannabis consumption significantly reduced brain activity during working memory tasks.
Heavy users showed reduced brain activity in key regions responsible for decision-making and attention, which was linked to worse performance on tasks requiring focus, problem-solving, and instruction-following. The study’s findings suggest that abstaining from using cannabis before doing a cognitive task could help improve performance.
However, the study also highlights the need for more research on the effects of cannabis use, particularly in terms of long-term effects and impact on different age groups. The study’s authors emphasize the importance of understanding both the benefits and risks of cannabis use to empower individuals to make informed decisions.
Key findings include:
* 63% of heavy lifetime cannabis users showed reduced brain activity during a working memory task
* 68% of recent cannabis users demonstrated similar impairment
* Heavy users were considered those who used cannabis over 1,000 times in their lifetime
* The study found a statistically significant effect on brain function during working memory tasks, but less significance for other cognitive functions
It is essential to note that the study’s results should be interpreted with caution, and more research is needed to fully understand the effects of cannabis use on the brain.
Source: https://scitechdaily.com/new-mri-study-reveals-how-cannabis-alters-brain-activity-and-weakens-memory