文章基本信息

标题：Effects of Chewing Frequency on Cerebral Blood Flow and Cognitive Function
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作者：Saya Natsui ; Megumi Sato ; Tomomi Yokoyama 等
期刊名称：Journal of Behavioral and Brain Science
印刷版ISSN：2160-5866
电子版ISSN：2160-5874
出版年度：2020
卷号：10
期号：7
页码：287-295
DOI：10.4236/jbbs.2020.107018
语种：English
出版社：Scientific Research Pub
摘要：The purpose of the present study was to examine the effect of the frequency of mastication on cerebral activation and task scores for computational tasks. Eleven healthy subjects participated in the present study (nine women, two men). Subjects carried out the Uchida-Kraepelin Test for 15 min before and after chewing tasteless gum for five minutes. The oxygenation of the left prefrontal cortex was monitored by near-infrared spectroscopy during the computational tasks. Task scores did not differ significantly according to chewing frequency (p > 0.05). Conversely, the oxygenation value measured after mastication at a chewing frequency of 110 times/minute (Hz) was significantly higher than that observed before mastication (p < 0.05). Meanwhile, before and after levels of oxygenation did not differ significantly for chewing frequencies of 30 Hz and 70 Hz (p > 0.05 for both). The results of the present study suggest that tasteless mastication does not enhance calculation performance, while a high mastication frequency demonstrates an influence on oxygenation. However, our study indicates that chewing tasteless gum per se does not increase cognitive performance.
关键词：Mastication;Frequency;Brain Activity;Uchida-Kraepelin Test;Near-Infrared Spectroscopy