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Ecological momentary assessment of working memory under conditions of simultaneous marijuana and tobacco use.

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  • Additional Information
    • Subject Terms:
    • Keyword(s):
      Alcohol; cannabis; ecological momentary assessment; tobacco; working memory; young adults
    • Abstract:
      Background and aims The neuropsychological correlates of simultaneous marijuana and tobacco use are largely unknown, which is surprising as both substances have similar neural substrates and have opposing influences on working memory (WM). This study examined the effects of marijuana alone, tobacco alone and simultaneous marijuana and tobacco use on WM. Design Primary aims were tested using a within-subject design, controlling for multiple subject- and momentary-level confounds via ecological momentary assessment (EMA). Setting Data collection occurred in the Chicago, USA area in participants' natural environments. Participants Participants were 287 community young adults from a larger natural history study, oversampled for ever smoking, all of whom event-recorded at least one substance use occasion during the study week. Measurements Momentary tobacco, marijuana and alcohol use were recorded during multiple EMA across 1 week of data capture. WM was assessed at the end of each EMA assessment. Contextual variables that may influence WM were recorded via EMA. Findings There were main effects for marijuana and tobacco: WM was poorer with marijuana [odds ratio (OR) = 0.91, 95% confidence interval (CI) = 0.84-0.99] and better with tobacco (OR = 1.11, 95% CI = 1.04-1.18). These effects were not qualified by an interaction (OR = 1.03, 95% CI = 0.84-1.26). Alcohol also reduced WM (OR = 0.87, 95% CI = 0.79-0.95), and the tobacco × alcohol interaction was significant (OR = 0.81, 95% CI = 0.66-0.99), indicating that the facilitative effect of tobacco disappeared with concurrent alcohol use. Conclusions Relative to when individuals did not use these substances, working memory decreased with acute marijuana and alcohol use and increased with acute tobacco use. However, the putative effect of marijuana on working memory and the facilitative effect of tobacco on working memory were no longer present when used simultaneously with tobacco and alcohol, respectively. Data suggest that tobacco use may compensate for working memory decrements from marijuana among young adults and highlight the importance of investigating further the negative impact of alcohol use on cognition. ABSTRACT FROM AUTHOR
    • Author Affiliations:
      1 Center for Addiction Medicine, Department of Psychiatry, Massachusetts General Hospital, Boston MA, USA; 2 Harvard Medical School, Boston MA, USA; 3 Department of Psychology, University of Illinois at Chicago, Chicago IL, USA; 4 Institute for Health Research and Policy, Chicago IL, USA; 5 Department of Public Health Sciences, University of Chicago, Chicago IL, USA
    • ISSN:
      09652140
    • Publication Type:
      Publication Type: Article Update Code: 20160711
    • Accession Number:
      116708694
  • Citations
    • ABNT:
      SCHUSTER, R. M.; MERMELSTEIN, R. J.; HEDEKER, D. Ecological momentary assessment of working memory under conditions of simultaneous marijuana and tobacco use. Addiction, [s. l.], v. 111, n. 8, p. 1466–1476, 2016. Disponível em: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=s3h&AN=116708694. Acesso em: 26 set. 2020.
    • AMA:
      Schuster RM, Mermelstein RJ, Hedeker D. Ecological momentary assessment of working memory under conditions of simultaneous marijuana and tobacco use. Addiction. 2016;111(8):1466-1476. Accessed September 26, 2020. http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=s3h&AN=116708694
    • APA:
      Schuster, R. M., Mermelstein, R. J., & Hedeker, D. (2016). Ecological momentary assessment of working memory under conditions of simultaneous marijuana and tobacco use. Addiction, 111(8), 1466–1476.
    • Chicago/Turabian: Author-Date:
      Schuster, Randi Melissa, Robin J. Mermelstein, and Donald Hedeker. 2016. “Ecological Momentary Assessment of Working Memory under Conditions of Simultaneous Marijuana and Tobacco Use.” Addiction 111 (8): 1466–76. http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=s3h&AN=116708694.
    • Harvard:
      Schuster, R. M., Mermelstein, R. J. and Hedeker, D. (2016) ‘Ecological momentary assessment of working memory under conditions of simultaneous marijuana and tobacco use’, Addiction, 111(8), pp. 1466–1476. Available at: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=s3h&AN=116708694 (Accessed: 26 September 2020).
    • Harvard: Australian:
      Schuster, RM, Mermelstein, RJ & Hedeker, D 2016, ‘Ecological momentary assessment of working memory under conditions of simultaneous marijuana and tobacco use’, Addiction, vol. 111, no. 8, pp. 1466–1476, viewed 26 September 2020, .
    • MLA:
      Schuster, Randi Melissa, et al. “Ecological Momentary Assessment of Working Memory under Conditions of Simultaneous Marijuana and Tobacco Use.” Addiction, vol. 111, no. 8, Aug. 2016, pp. 1466–1476. EBSCOhost, search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=s3h&AN=116708694.
    • Chicago/Turabian: Humanities:
      Schuster, Randi Melissa, Robin J. Mermelstein, and Donald Hedeker. “Ecological Momentary Assessment of Working Memory under Conditions of Simultaneous Marijuana and Tobacco Use.” Addiction 111, no. 8 (August 2016): 1466–76. http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=s3h&AN=116708694.
    • Vancouver/ICMJE:
      Schuster RM, Mermelstein RJ, Hedeker D. Ecological momentary assessment of working memory under conditions of simultaneous marijuana and tobacco use. Addiction [Internet]. 2016 Aug [cited 2020 Sep 26];111(8):1466–76. Available from: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=s3h&AN=116708694