Spectral analysis of changes in electroencephalographic activity after the chewing of gum
Spectral analysis of changes in electroencephalographic activity after the chewing of gum
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DOI：
10.1111/j.1440-1819.1998.tb02705.x
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发表时间：
1998-12-01
影响因子：
11.9
通讯作者：
Takigawa, M
中科院分区：
文献类型：
--
作者：
Masumoto, Y;Morinushi, T;Takigawa, M
本研究以脑电图为指标，探讨嚼口香糖对身心的影响。EEG分为两组：（i）咀嚼前的休息期（对照记录）和休息记录（休息后记录），用于检查再现性;（ii）咀嚼口香糖3分钟后的对照记录和休息期（咀嚼后记录）。计算每个频带与总频率功率的比值、α频带的平均频率和频率功率的偏侧性。在再现性检查中，在所有指标中，对照记录和静息后记录之间未观察到统计学显著差异。咀嚼口香糖后的脑电图反射与对照组相比无显著性差异。然而，通过方差分析观察到这些指标之间存在显著的交互作用。此外，咀嚼后记录中的α功率在几乎所有位置均显著高于对照记录中的α功率。总之，在记录方法中证实了EEG的个体内重现性。此外，有人建议，一个显着的相互作用和上升的趋势，咀嚼口香糖后的α带的平均频率反映了“唤醒”的心身反应咀嚼市售口香糖。
The present study aimed to examine the psychosomatic effect in the chewing of marketed gum using eletroencephalogram (EEG) as an index. The EEG were taken in two sets: (i) a resting period before chewing (control recording) and a resting record (post-resting recording) for examining reproducibility; and (ii) a control recording and resting period after gum-chewing for 3 min (post-chewing recording). The ratio of each frequency band to the total frequency power, the mean frequency of the alpha band and laterality of the frequency power was calculated. In the examination of the reproducibility, no statistically significant differences were observed between control recording and post-resting recording in all indices. In the reflection of EEG after gum-chewing, there were no significant differences between control recording and the post-chewing recording. However, a significant interaction was observed among these indices by analysis of variance. In addition, the alpha power in the post-chewing recording was significantly higher than that in the control recording at almost all the positions. In conclusion, the intra-individual reproducibility of EEG was confirmed in the recording method. Furthermore, it was suggested that a significant interaction and a rising trend of the mean frequency of the alpha band after gum-chewing reflected 'arousal' psychosomatic responses by the chewing of marketed gum.