Gum chewing speeds cognitive processing

Effects of chewing on cognitive processing speed.

In recent years, chewing has been discussed as producing effects of maintaining and sustaining cognitive performance. We have reported that chewing may improve or recover the process of working memory; however, the mechanisms underlying these phenomena are still to be elucidated. We investigated the effect of chewing on aspects of attention and cognitive processing speed, testing the hypothesis that this effect induces higher cognitive performance. Seventeen healthy adults (20-34years old) were studied during attention task with blood oxygenation level-dependent functional (fMRI) at 3.0 T MRI. The attentional network test (ANT) within a single task fMRI containing two cue conditions (no cue and center cue) and two target conditions (congruent and incongruent) was conducted to examine the efficiency of alerting and executive control. Participants were instructed to press a button with the right or left thumb according to the direction of a centrally presented arrow. Each participant underwent two back-to-back ANT sessions with or without chewing gum, odorless and tasteless to remove any effect other than chewing. Behavioral results showed that mean reaction time was significantly decreased during chewing condition, regardless of speed-accuracy trade-off, although there were no significant changes in behavioral effects (both alerting and conflict effects). On the other hand, fMRI analysis revealed higher activations in the anterior cingulate cortex and left frontal gyrus for the executive network and motor-related regions for both attentional networks during chewing condition. These results suggested that chewing induced an increase in the arousal level and alertness in addition to an effect on motor control and, as a consequence, these effects could lead to improvements in cognitive performance.


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Wolf says March 13, 2013

Any particular brand you can recommend?

    Mangan says March 13, 2013

    Well, in the study the gum was tasteless, since they didn’t want the flavor to affect results. So anything ought to work, maybe especially the chewing gum that’s lost its flavor on the bedpost overnight.

eah says March 20, 2013

I stopped chewing gum decades ago. First sugared gum due to the risk of dental caries. Then sugar free gum because it seemed to regularly cause me gastro-intestinal distress, via sorbitol I presumed at the time.

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