The Acute Effects of Caffeinated Black Coffee on Cognition and Mood in Healthy Young and Older Adults

Haskell, Crystal, Jackson, Philippa, Forster, Joanne, Dodd, Fiona, Bowerbank, Samantha and Kennedy, David (2018) The Acute Effects of Caffeinated Black Coffee on Cognition and Mood in Healthy Young and Older Adults. Nutrients, 10 (10). p. 1386. ISSN 2072-6643

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Official URL: http://dx.doi.org/10.3390/nu10101386

Abstract

Cognitive and mood benefits of coffee are often attributed to caffeine. However, emerging evidence indicates behavioural effects of non-caffeine components within coffee, suggesting the potential for direct or synergistic effects of these compounds when consumed with caffeine in regular brewed coffee. The current randomised, placebo-controlled, double-blind, counterbalanced-crossover study compared the effects of regular coffee, decaffeinated coffee, and placebo on measures of cognition and mood. Age and sex effects were explored by comparing responses of older (61–80 years, N = 30) and young (20–34 years, N = 29) males and females. Computerised measures of episodic memory, working memory, attention, and subjective state were completed at baseline and 30 min post-drink. Regular coffee produced the expected effects of decreased reaction time and increased alertness when compared to placebo. When compared to decaffeinated coffee, increased digit vigilance accuracy and decreased tiredness and headache ratings were observed. Decaffeinated coffee also increased alertness when compared to placebo. Higher jittery ratings following regular coffee in young females and older males represented the only interaction of sex and age with treatment. These findings suggest behavioural activity of coffee beyond its caffeine content, raising issues with the use of decaffeinated coffee as a placebo and highlighting the need for further research into its psychoactive effects.

Item Type: Article
Uncontrolled Keywords: coffee; caffeine; chlorogenic acids; phenolic; cognition; cognitive; mood; age; sex
Subjects: B400 Nutrition
C800 Psychology
Department: Faculties > Health and Life Sciences > Applied Sciences
Faculties > Health and Life Sciences > Psychology
Depositing User: Paul Burns
Date Deposited: 13 Nov 2018 12:44
Last Modified: 12 Oct 2019 11:30
URI: http://nrl.northumbria.ac.uk/id/eprint/36656

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