The results of a new study published in the journal Psychopharmacology show that marijuana users have smaller volumes in areas of the brain responsible for executive functions, including decision-making, reward processing, and emotional regulation. The National Institute on Drug Abuse (NIDA) funded the study.
1. Department of Psychiatry, Harvard Medical School-McLean Hospital, Belmont, MA USA
2. Department of Psychology, University of Cincinnati, Cincinnati, OH, USA
3. Department of Psychology, University of Wisconsin–Milwaukee, Milwaukee, WI, USA