Working memory ability predicts trajectories of early alcohol use in adolescents: the mediational role of impulsivity.
Aims (i) To evaluate the role of pre-existing weakness in working memory ability ( WM) as a risk factor for early alcohol use as mediated by different forms of impulsivity and (ii) to assess the adverse effects of progressive alcohol use on variations in WM over time. Design, setting and participant...
| Publicado en: | Addiction Vol. 108; no. 3; pp. 506 - 516 |
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| Autores principales: | , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
Mar2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104236491&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104236491 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09652140 AIO jtl: Addiction issn: 09652140 maglogo: Y pubinfo: dt: Mar2013 vid: 108 iid: 3 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 104236491 85603967 10.1111/add.12001 NLM23033972 104236491 ppf: 506 ppct: 10 formats: fmt: @attributes: type: P tig: atl: Working memory ability predicts trajectories of early alcohol use in adolescents: the mediational role of impulsivity. aug: au: Khurana, Atika Romer, Dan Betancourt, Laura M. Brodsky, Nancy L. Giannetta, Joan M. Hurt, Hallam affil: Annenberg Public Policy Center, The University of Pennsylvania sug: subj: Alcohol Abuse Risk Factors Memory Alcohol Abuse Complications Risk Taking Behavior Human Funding Source Descriptive Statistics Adolescence Female Male Prospective Studies Models, Theoretical Pennsylvania Data Collection, Computer Assisted Clinical Assessment Tools Scales Self Report Confidence Intervals Chi Square Test Data Analysis Software Adolescent: 13-18 years Female Male ab: Aims (i) To evaluate the role of pre-existing weakness in working memory ability ( WM) as a risk factor for early alcohol use as mediated by different forms of impulsivity and (ii) to assess the adverse effects of progressive alcohol use on variations in WM over time. Design, setting and participants A community sample of 358 adolescents [48% males, meanage(baseline) = 11.4 ± 0.87 years] from a longitudinal cohort design, assessed annually over 4 consecutive years with less than 6% attrition. Measurements Repeated assessments were conducted for the following key variables: WM (based on performance on four separate tasks), frequency of alcohol use ( AU) and three forms of impulsivity, namely sensation seeking ( SS), acting without thinking ( AWT) and delay discounting ( DD). Latent growth curve modeling procedures were used to identify individual trajectories of change for all key variables. Findings Weakness in WM (at baseline) predicted significantly both concurrent alcohol use and increased frequency of use over the four waves ( P < 0.05). This effect was entirely mediated by two forms of impulsivity, AWT and DD, both of which were characterized by underlying weakness in WM. No individual variation was observed in the slopes of WM, which suggests that individual variations in alcohol use were not associated with changes in WM in our early adolescent sample. Conclusions Early adolescent alcohol use may be a consequence of (pre-existing) weaknesses in working memory ( WM) rather than a cause of it. Efforts to reduce early alcohol use should consider the distinct roles of different impulsivity dimensions, in addition to WM, as potential targets of intervention. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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