Marijuana use: Some highlights: On average, the marijuana users who participated in the study consumed the drug three times per day. Cognitive tests show that chronic marijuana users had lower IQ compared to age-and gender-matched controls but the differences do not seem to be related to the brain abnormalities as no direct correlation can be drawn between IQ deficits and orbitofrontal cortex volume decrease. The results suggest increases in connectivity, both structural and functional that may be compensating for gray matter losses. Eventually, however, the structural connectivity or ‘wiring’ of the brain starts degrading with prolonged marijuana use.” Although increased structural wiring declines after six to eight years of continued chronic use, marijuana users continue to display more intense connectivity than healthy non-users, which may explain why chronic, long-term users “seem to be doing just fine” despite smaller orbitofrontal cortex brain volumes, Filbey explained. brainhealth.utdallas.edu/blog_page/study-shows-marijuanas-long-term-effects-on-the-brain
Posted on: Wed, 10 Dec 2014 05:27:16 +0000
Trending Topics
Recently Viewed Topics
© 2015