Allen Andrew P, Jacob Tim J C, Smith Andrew P
Centre for Occupational and Health Psychology, School of Psychology, Cardiff University, 63 Park Place, CF10 3AS, United Kingdom.
School of Biosciences, Cardiff University, Life Sciences Building, Museum Avenue, CF10 3AX, United Kingdom.
Physiol Behav. 2014 Jun 22;133:244-51. doi: 10.1016/j.physbeh.2014.05.009. Epub 2014 May 21.
Research has shown that chewing gum improves attention, although the mechanism for this effect remains unclear. This study investigated the effects and after-effects of chewing gum on vigilance, mood, heart rate and EEG. Participants completed a vigilance task four times; at baseline, with or without chewing gum, and twice post-chewing. EEG alpha and beta power at left frontal and temporal lobes, subjective mood and heart rate were assessed. Chewing gum shortened reaction time and increased the rate of hits, although hits fell during the second post-chewing task. Chewing gum heightened heart rate, but only during chewing. Gum also increased beta power at F7 and T3 immediately post-chewing, but not following the post-chewing tasks. The findings show that chewing gum affects several different indicators of alertness.
研究表明，嚼口香糖能提高注意力，尽管这种效果的机制尚不清楚。本研究调查了嚼口香糖对警觉性、情绪、心率和脑电图的影响及后效应。参与者完成了四次警觉性任务；在基线状态下，分别在嚼口香糖和不嚼口香糖的情况下进行，并且在嚼口香糖后进行两次。评估了左额叶和颞叶的脑电图α和β功率、主观情绪和心率。嚼口香糖缩短了反应时间并提高了命中率，尽管在嚼口香糖后的第二项任务中命中率有所下降。嚼口香糖会提高心率，但仅在咀嚼过程中。口香糖在咀嚼后立即增加了F7和T3处的β功率，但在咀嚼后任务中没有增加。研究结果表明，嚼口香糖会影响几种不同的警觉性指标。
