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

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dc.contributor.author Lanini, Juliana [UNIFESP]
dc.contributor.author Fernandes Galduroz, Jose Carlos [UNIFESP]
dc.contributor.author Pompeia, Sabine [UNIFESP]
dc.date.accessioned 2019-01-21T10:30:06Z
dc.date.available 2019-01-21T10:30:06Z
dc.date.issued 2016
dc.identifier https://doi.org/10.1002/hup.2511
dc.identifier.citation Human Psychopharmacology-Clinical And Experimental. Hoboken, v. 31, n. 1, p. 29-43, 2016.
dc.identifier.issn 0885-6222
dc.identifier.uri http://repositorio.unifesp.br/handle/11600/49576
dc.description.abstract Caffeine 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.sponsorship Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2011/01204-3]
dc.description.sponsorship Associacao Fundo de Incentivo a Pesquisa (AFIP)
dc.description.sponsorship Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
dc.description.sponsorship Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
dc.format.extent 29-43
dc.language.iso eng
dc.publisher Wiley-blackwell
dc.relation.ispartof Human Psychopharmacology-Clinical And Experimental
dc.rights Acesso restrito
dc.subject Caffeine en
dc.subject Executive Functions en
dc.subject Glucose en
dc.subject Cognitive Effort en
dc.subject AttentionLatent-Variable Analysis en
dc.subject Healthy-Young Adults en
dc.subject Cognitive Performance en
dc.subject Working-Memory en
dc.subject Blood-Glucose en
dc.subject Psychomotor Performance en
dc.subject Individual-Differences en
dc.subject Sustained Attention en
dc.subject Sleep-Deprivation en
dc.subject Glycemic Index en
dc.title Acute personalized habitual caffeine doses improve attention and have selective effects when considering the fractionation of executive functions en
dc.type Artigo
dc.description.affiliation Departamento 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.affiliationUnifesp Departamento 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.sponsorshipID FAPESP: 2011/01204-3
dc.identifier.doi 10.1002/hup.2511
dc.description.source Web of Science
dc.identifier.wos WOS:000371915100004



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