Sensitivity to change in cognitive performance and mood measures of energy and fatigue in response to differing doses of caffeine or breakfast.
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.
Maridakis
Victor
V
University of Georgia Department of Kinesiology, Athens, Georgia 30602-6554, USA.
Herring
Matthew P
MP
O'Connor
Patrick J
PJ
D000339:Affect / Q000187:drug effects; D001143:Arousal / Q000187:drug effects; D002110:Caffeine / Q000008:administration & dosage / Q000494:pharmacology*; D002940:Circadian Rhythm; D003071:Cognition / Q000187:drug effects; D004040:Dietary Carbohydrates / Q000008:administration & dosage / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D005221:Fatigue / Q000517:prevention & control*; D005502:Food; D006801:Humans; D006815:Hunger; D008297:Male; D009042:Motivation; D011597:Psychomotor Performance / Q000187:drug effects; D012527:Satiation / Q000187:drug effects; D012647:Self-Assessment; D012890:Sleep / Q000187:drug effects; D055815:Young Adult
D004040:Dietary Carbohydrates; D002110:Caffeine