Changes in cannabis use in emerging adulthood: The influence of peer network,impulsivity, anxiety and depression |
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| Institution: | 1. Behavioral Psychopharmacology Research Laboratory, McLean Hospital, Belmont, MA, USA;2. Neurodevelopmental Laboratory on Addictions and Mental Health, McLean Hospital, Belmont, MA, USA;3. McLean Imaging Center, McLean Hospital, Belmont, MA, USA;4. Department of Psychiatry, Harvard Medical School, Boston, MA, USA;5. Boston VA Healthcare System, Brockton, MA, USA;6. Harvard South Shore Residency Program, Brockton, MA, USA;1. Peninsula Health, Frankston, Vic, Australia;2. Monash University, Melbourne, Vic, Australia;3. Cabrini Health, Melbourne, Vic, Australia;4. Peninsula Private Hospital, Frankston, Vic, Australia;5. Baker Heart and Diabetes Institute, Melbourne, Vic, Australia;1. Department of Psychiatry, Bellvitge University Hospital-IDIBELL, and CIBERSAM, Barcelona, Spain;2. Cognitive Neuroscience Unit, School of Psychology, Deakin University, Geelong, Victoria, Australia;3. Centro Provincial De Drogodependencias, Diputación De Granada, Spain;4. Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma De Barcelona, Spain;5. Turner Institute for Brain and Mental Health. Monash University, Melbourne, Australia;1. Goldsmiths, University of London, New Cross, London, SE14 6NW, UK;2. Behaviour and Health Research Unit, University of Cambridge, Cambridge, UK |
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| Abstract: | IntroductionCannabis is the most commonly used illicit drug with the highest prevalence reported among 15- to 24-year-olds. This specific period of emerging adulthood constitutes a critical age for substance use and for future consumption. Cannabis use patterns change during college or university and the post-college transition; users are at greater risk of adverse health outcomes (especially if they start or maintain a pattern of frequent use).ObjectivesThe overall aim of this study was to highlight psychological and relational factors that might be associated with changes (including cessation and fluctuation) in cannabis use during this specific period, separately for males and females.MethodsThe subjects were 682 first-year college students (69.94% of female), aged between 18 and 25 years (M = 18.59 years, SD = 1.56). Four groups were formed according to cannabis consumption: “non-users” (54.64%), “desisting users” (14.04%), “fluctuating users” (16.23%), and “persistent users” (15.07%). A self-report questionnaire was administered to evaluate prevalence, frequency and trajectory of use, number of peer cannabis users, alcohol use, impulsivity, anxiety (trait and social) and depression.ResultsFemales appear more sensitive to the romantic partner's consumption than males. For both sexes, having more friends who use cannabis appears to be a determinant. Depression and anxiety were not related to changes in cannabis use. Impulsivity is a significant factor for the maintenance of cannabis use in emerging adulthood, with higher lack of premeditation for males and higher sensation seeking for females among fluctuating and persistent users.ConclusionsResults are discussed in terms of maintenance of use and the spiral of consumption, including clinical implications for prevention and interventions. |
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| Keywords: | Cannabis use Peers Impulsivity Anxiety Depression Emerging adulthood Consommation de cannabis Pairs consommateurs Impulsivité Anxiété Dépression Entrée à l’âge adulte |
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