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Dietary caffeine, performance and mood: enhancing and restorative effects after controlling for withdrawal reversal.
Neuropsychobiology 2005; 52(1):1-10N

Abstract

This study aimed to determine whether sustained (i.e. dietary) use of caffeine has net effects on performance and mood compared with sustained abstinence, and whether dietary caffeine restores performance and mood adversely affected by sleep restriction. Participants (n = 96) alternated weekly between ingesting placebo and caffeine (1.75 mg/kg) three times daily for 4 consecutive weeks, while either rested or sleep restricted. Performance involved either a single task requiring sustained vigilance or a varied battery of brief psychomotor and cognitive tasks, and mood was assessed using the Profile of Mood States. Caffeine had no significant net enhancing effects for either performance or mood when participants were rested, and produced no net restorative effects when performance and mood were degraded by sleep restriction.

Authors+Show Affiliations

National University of Ireland, Galway, Ireland. j.james@nuigalway.ieNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15942257

Citation

James, Jack E., et al. "Dietary Caffeine, Performance and Mood: Enhancing and Restorative Effects After Controlling for Withdrawal Reversal." Neuropsychobiology, vol. 52, no. 1, 2005, pp. 1-10.
James JE, Gregg ME, Kane M, et al. Dietary caffeine, performance and mood: enhancing and restorative effects after controlling for withdrawal reversal. Neuropsychobiology. 2005;52(1):1-10.
James, J. E., Gregg, M. E., Kane, M., & Harte, F. (2005). Dietary caffeine, performance and mood: enhancing and restorative effects after controlling for withdrawal reversal. Neuropsychobiology, 52(1), pp. 1-10.
James JE, et al. Dietary Caffeine, Performance and Mood: Enhancing and Restorative Effects After Controlling for Withdrawal Reversal. Neuropsychobiology. 2005;52(1):1-10. PubMed PMID: 15942257.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dietary caffeine, performance and mood: enhancing and restorative effects after controlling for withdrawal reversal. AU - James,Jack E, AU - Gregg,M Elizabeth, AU - Kane,Marian, AU - Harte,Frances, Y1 - 2005/06/03/ PY - 2005/6/9/pubmed PY - 2005/7/28/medline PY - 2005/6/9/entrez SP - 1 EP - 10 JF - Neuropsychobiology JO - Neuropsychobiology VL - 52 IS - 1 N2 - This study aimed to determine whether sustained (i.e. dietary) use of caffeine has net effects on performance and mood compared with sustained abstinence, and whether dietary caffeine restores performance and mood adversely affected by sleep restriction. Participants (n = 96) alternated weekly between ingesting placebo and caffeine (1.75 mg/kg) three times daily for 4 consecutive weeks, while either rested or sleep restricted. Performance involved either a single task requiring sustained vigilance or a varied battery of brief psychomotor and cognitive tasks, and mood was assessed using the Profile of Mood States. Caffeine had no significant net enhancing effects for either performance or mood when participants were rested, and produced no net restorative effects when performance and mood were degraded by sleep restriction. SN - 0302-282X UR - https://www.unboundmedicine.com/medline/citation/15942257/Dietary_caffeine_performance_and_mood:_enhancing_and_restorative_effects_after_controlling_for_withdrawal_reversal_ L2 - https://www.karger.com?DOI=10.1159/000086172 DB - PRIME DP - Unbound Medicine ER -