Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
, 11 (3), 491-6

Effects of Frequent Marijuana Use on Brain Tissue Volume and Composition

Affiliations

Effects of Frequent Marijuana Use on Brain Tissue Volume and Composition

R I Block et al. Neuroreport.

Abstract

To investigate CNS effects of frequent marijuana use, brain tissue volume and composition were measured using magnetic resonance imaging (MRI) in 18 current, frequent, young adult marijuana users and 13 comparable, non-using controls. Automated image analysis techniques were used to measure global and regional brain volumes, including, for most regions, separate measures of gray and white matter. The marijuana users showed no evidence of cerebral atrophy or global or regional changes in tissue volumes. Volumes of ventricular CSF were not higher in marijuana users than controls, but were, in fact, lower. There were no clinically significant abnormalities in any subject's MRI. Sex differences were detected in several global volume measures.

Similar articles

See all similar articles

Cited by 51 articles

See all "Cited by" articles

Publication types

LinkOut - more resources

Feedback