Sensitivity to change in cognitive performance and mood measures of energy and fatigue in response to differing doses of caffeine or breakfast.

Victor Maridakis, Matthew P Herring, Patrick J O'Connor

University of Georgia Department of Kinesiology, Athens, Georgia 30602-6554, USA.

The International journal of neuroscience 2009

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This double-blind, placebo-controlled, within-subjects (N = 18) experiment compared the sensitivity to change of cognitive performance and mood measures of mental energy following consumption of either 100 or 200-mg caffeine or a 440-calorie breakfast. Breakfast and 200-mg caffeine improved mood and cognitive performance. The sensitivity to change of the measures did not differ in response to any treatment (all p values > .05). The mood and cognitive measures of mental energy used here have similar sensitivity to detecting change in response to a moderate dose of caffeine and breakfast consumption.

Citation

Victor Maridakis, Matthew P Herring, Patrick J O'Connor. Sensitivity to change in cognitive performance and mood measures of energy and fatigue in response to differing doses of caffeine or breakfast. The International journal of neuroscience. 2009;119(7):975-94