Johnson, A.J., Jenks, R., Miles, C., Albert, M. and Cox, M., 2011. Chewing Gum Moderates Multi-Task Induced Shifts in Stress, Mood, and Alertness: A Re-Examination. Appetite, 56, pp. 408-411.
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The finding that chewing gum can moderate stress and mood changes following a multi-task cognitive stressor (Scholey, Haskell, Robertson, Kennedy, Milne, and Wetherell, 2009) was re-examined. In a repeated measures cross-over design, thirty participants completed a 20-minute multi-tasking stressor on consecutive days, both with and without chewing gum. Both prior to and post stressor, participants provided salivary cortisol samples and self-rated measures of stress, state anxiety, calmness, contentedness, and alertness. Contrary to Scholey et al. (2009), chewing gum failed to attenuate both salivary cortisol levels and the increase in self-rated stress. Self-rated anxiety, calmness, and contentedness were not impacted by chewing gum. This suggests that the stress effects reported by Scholey et al. may be constrained by particular features of that study (e.g. morning testing). However, consistent with Scholey et al. (2009), chewing gum was shown to increase alertness following the stressor. The mechanisms underpinning heightened alertness are unclear; however, such increases may be linked to greater cerebral activity following the chewing of gum (Fang Li, Lu, Gong, and Yew, 2005).
|Group:||School of Design, Engineering & Computing > Psychology Research Group|
|Deposited By:||Dr. Andrew J. Johnson|
|Deposited On:||19 Apr 2012 14:17|
|Last Modified:||07 Mar 2013 15:54|
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