Sensitivity to Change in Cognitive Performance and Mood Measures of Energy and Fatigue in Response to Morning Caffeine Alone or in Combination With Carbohydrate

Authors: Maridakis, Victor; O'Connor, Patrick; Tomporowski, Phillip

Source: International Journal of Neuroscience, Volume 119, Number 8, August 2009 , pp. 1239-1258(20)

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Abstract:

This double-blind, placebo-controlled, within-subjects (N = 17) experiment compared the sensitivity to change of the cognitive performance and mood measures of mental energy following consumption of either a moderate dose of caffeine (200 mg), a small amount of carbohydrate (50 g white bread), or both. Caffeine improved mood and performance. The sensitivity to change of the mood and cognitive measures did not differ in response to the three treatments (all p values > .05). The mood and cognitive measures of mental energy used here have similar sensitivity to detecting change in response to caffeine and carbohydrate.

Keywords: AD-ACL; CPT; POMS; VAS; vigilance; vigor

Document Type: Research article

DOI: http://dx.doi.org/10.1080/00207450802333987

Affiliations: 1: Department of Kinesiology, University of Georgia, Athens, Georgia, USA

Publication date: 2009-08-01

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