Separate and joint effects of alcohol and caffeine on conflict monitoring and adaptation.
Rationale: Caffeine is commonly believed to offset the acute effects of alcohol, but some evidence suggests that cognitive processes remain impaired when caffeine and alcohol are coadministered. Objectives: No previous study has investigated the separate and joint effects of alcohol and caffeine on...
| Publicado en: | Psychopharmacology Vol. 233; no. 7; pp. 1245 - 1256 |
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| Autores principales: | , , , , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Apr2016
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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=113901695&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 113901695 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00333158 EJD jtl: Psychopharmacology issn: 00333158 maglogo: N pubinfo: dt: Apr2016 vid: 233 iid: 7 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 113901695 10.1007/s00213-016-4208-y 113901695 ppf: 1245 ppct: 11 formats: fmt: @attributes: type: P tig: atl: Separate and joint effects of alcohol and caffeine on conflict monitoring and adaptation. aug: au: Bailey, Kira Amlung, Michael Morris, David Price, Mason Gunten, Curtis McCarthy, Denis Bartholow, Bruce affil: Department of Psychological Sciences, University of Missouri, 210 McAlester Hall Columbia 65211 USA sug: ab: Rationale: Caffeine is commonly believed to offset the acute effects of alcohol, but some evidence suggests that cognitive processes remain impaired when caffeine and alcohol are coadministered. Objectives: No previous study has investigated the separate and joint effects of alcohol and caffeine on conflict monitoring and adaptation, processes thought to be critical for self-regulation. This was the purpose of the current study. Methods: Healthy, young adult social drinkers recruited from the community completed a flanker task after consuming one of four beverages in a 2 × 2 experimental design: Alcohol + caffeine, alcohol + placebo caffeine, placebo alcohol + caffeine, or placebo alcohol + placebo caffeine. Accuracy, response time, and the amplitude of the N2 component of the event-related potential (ERP), a neural index of conflict monitoring, were examined as a function of whether or not conflict was present (i.e., whether or not flankers were compatible with the target) on both the previous trial and the current trial. Results: Alcohol did not abolish conflict monitoring or adaptation. Caffeine eliminated conflict adaptation in sequential trials but also enhanced neural conflict monitoring. The combined effect of alcohol and caffeine was apparent only in how previous conflict affected the neural conflict monitoring response. Conclusions: Together, the findings suggest that caffeine leads to exaggeration of attentional resource utilization, which could provide short-term benefits but lead to problems conserving resources for when they are most needed. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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