Acute personalized habitual caffeine doses improve attention and have selective effects when considering the fractionation of executive functions

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dc.contributor.authorLanini, Juliana [UNIFESP]
dc.contributor.authorFernandes Galduroz, Jose Carlos [UNIFESP]
dc.contributor.authorPompeia, Sabine [UNIFESP]
dc.date.accessioned2019-01-21T10:30:06Z
dc.date.available2019-01-21T10:30:06Z
dc.date.issued2016
dc.description.abstractCaffeine is widely used, often consumed with food, and improves simple and complex/executive attention under fasting conditions. We investigated whether these cognitive effects are observed when personalized habitual doses of caffeine are ingested by caffeine consumers, whether they are influenced by nutriments and if various executive domains are susceptible to improvement. This was a double-blind, placebo-controlled study including 60 young, healthy, rested males randomly assigned to one of four treatments: placebo fasting, caffeine fasting, placebo meal and caffeine meal. Caffeine doses were individualized for each participant based on their self-reported caffeine consumption at the time of testing (morning). The test battery included measures of simple and sustained attention, executive domains (inhibiting, updating, shifting, dual tasking, planning and accessing long-term memory), control measures of subjective alterations, glucose and insulin levels, skin conductance, heart rate and pupil dilation. Regardless of meal intake, acute habitual doses of caffeine decreased fatigue, and improved simple and sustained attention and executive updating. This executive effect was not secondary to the habitual weekly dose consumed, changes in simple and sustained attention, mood, meal ingestion and increases in cognitive effort. We conclude that the morning caffeine "fix" has positive attentional effects and selectively improved executive updating whether or not caffeine is consumed with food. Copyright (C) 2015 John Wiley & Sons, Ltd.en
dc.description.affiliationDepartamento de Psicobiologia, Universidade Federal de São Paulo, Rua Botucatu, 862, 1° Andar, Edifício de Ciências Biomédicas, São Paulo, São Paulo 04023‐062, Brazil
dc.description.affiliationUnifespDepartamento de Psicobiologia, Universidade Federal de São Paulo, Rua Botucatu, 862, 1° Andar, Edifício de Ciências Biomédicas, São Paulo, São Paulo 04023‐062, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2011/01204-3]
dc.description.sponsorshipAssociacao Fundo de Incentivo a Pesquisa (AFIP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
dc.description.sponsorshipCoordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
dc.description.sponsorshipIDFAPESP: 2011/01204-3
dc.format.extent29-43
dc.identifierhttps://doi.org/10.1002/hup.2511
dc.identifier.citationHuman Psychopharmacology-Clinical And Experimental. Hoboken, v. 31, n. 1, p. 29-43, 2016.
dc.identifier.doi10.1002/hup.2511
dc.identifier.issn0885-6222
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/49576
dc.identifier.wosWOS:000371915100004
dc.language.isoeng
dc.publisherWiley-blackwell
dc.relation.ispartofHuman Psychopharmacology-Clinical And Experimental
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectCaffeineen
dc.subjectExecutive Functionsen
dc.subjectGlucoseen
dc.subjectCognitive Efforten
dc.subjectAttentionLatent-Variable Analysisen
dc.subjectHealthy-Young Adultsen
dc.subjectCognitive Performanceen
dc.subjectWorking-Memoryen
dc.subjectBlood-Glucoseen
dc.subjectPsychomotor Performanceen
dc.subjectIndividual-Differencesen
dc.subjectSustained Attentionen
dc.subjectSleep-Deprivationen
dc.subjectGlycemic Indexen
dc.titleAcute personalized habitual caffeine doses improve attention and have selective effects when considering the fractionation of executive functionsen
dc.typeinfo:eu-repo/semantics/article
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