Johnson, A.J., Wilson, N., Maunder, A. and Duncan, M.J., 2011. The effects of Quick Energy™ on daytime sleepiness and mood. In: Psychobiology Section of the British Psychological Society, 5-7 September 2011, Windermere, England. (Unpublished)
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In the current study pupillary oscillations were measured in order to provide a physiological indication of the effects of Quick Energy™ (Viva Beverages) on alertness. In a within-participants balanced placebo design, twenty-two participants completed the 11-minute Pupillographic Sleepiness Test (PST) following consumption of Quick Energy™ (59ml, orange flavor; mixed with a 250ml of orange cordial/water solution) or placebo (250ml of orange cordial/water solution). Self-rated measures of mood (VAMS: Bond and Lader, 1974) and sleepiness (SSS: Hoddes et al., 1973) were taken at three testing epochs: baseline, 15-minutes following drink consumption (i.e. immediately pre-PST), and immediately post-PST. The PST was found to significantly increase pupillary unrest (i.e. increase daytime sleepiness), increase self-rated sleepiness, and decrease self-rated alertness. For the PST, the interaction between experimental stage (baseline and test) and drug condition approached significance (p=0.07), providing some evidence that Quick Energy™ moderated the rise in daytime sleepiness. However, physiological measures were not mirrored subjectively, wherein Quick Energy™ had no effects on self-rated sleepiness, alertness, contentedness, and calmness.
|Item Type:||Conference or Workshop Item (Poster)|
|Group:||School of Design, Engineering & Computing > Psychology Research Group|
|Deposited By:||Dr. Andrew J. Johnson|
|Deposited On:||24 Apr 2012 14:31|
|Last Modified:||07 Mar 2013 15:55|
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