title: Effects of Cannabis Use on Human Behavior, Including Cognition, Motivation, and Psychosis: A Review.
abstract: With a political debate about the potential risks and benefits of cannabis use as a backdrop, the wave of legalization and liberalization initiatives continues to spread. Four states (Colorado, Washington, Oregon, and Alaska) and the District of Columbia have passed laws that legalized cannabis for recreational use by adults, and 23 others plus the District of Columbia now regulate cannabis use for medical purposes. These policy changes could trigger a broad range of unintended consequences, with profound and lasting implications for the health and social systems in our country. Cannabis use is emerging as one among many interacting factors that can affect brain development and mental function. To inform the political discourse with scientific evidence, the literature was reviewed to identify what is known and not known about the effects of cannabis use on human behavior, including cognition, motivation, and psychosis.
authors: National Institute on Drug Abuse, National Institutes of Health, Bethesda, Maryland.
authors: Nora D
authors: ND
authors: Volkow
authors: Child Development Center, University of California, Irvine.
authors: James M
authors: JM
authors: Swanson
authors: Center for Addiction Medicine, Department of Psychiatry, Massachusetts General Hospital, Boston4Harvard Medical School, Boston, Massachusetts.
authors: A Eden
authors: AE
authors: Evins
authors: Veterans Affairs Boston Healthcare System, Harvard Medical School, Brockton, Massachusetts.
authors: Lynn E
authors: LE
authors: DeLisi
authors: Department of Psychology, Arizona State University, Tempe.
authors: Madeline H
authors: MH
authors: Meier
authors: Center for Children and Families, Department of Psychology, Florida International University, Miami.
authors: Raul
authors: R
authors: Gonzalez
authors: Division of Psychiatry, University College London, London, England9Psychiatric Imaging Group, Medical Research Council Clinical Sciences Centre, Hammersmith Hospital, London, England.
authors: Michael A P
authors: MA
authors: Bloomfield
authors: Clinical Psychopharmacology Unit, Clinical Health Psychology, University College London, London, England.
authors: H Valerie
authors: HV
authors: Curran
authors: National Institute on Drug Abuse, National Institutes of Health, Bethesda, Maryland.
authors: Ruben
authors: R
authors: Baler
mesh_terms: D000328:Adult; D001519:Behavior / Q000187:drug effects*; D002188:Cannabis / Q000009:adverse effects*; D003071:Cognition / Q000187:drug effects*; D006801:Humans; D007880:Legislation, Drug; D002189:Marijuana Abuse / Q000150:complications / Q000523:psychology*; D009042:Motivation / Q000187:drug effects*; D011605:Psychoses, Substance-Induced / Q000209:etiology*; D014481:United States