咀嚼回数の違いが摂食前後の脳機能に及ぼす影響に関する研究

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2024/07/01

タイトル(英語): A Study on the Effects of Brain Functions Before and After Eating by Difference in the Number of Chews

著者名: 大原　冬海（富山県立大学大学院 工学研究科），崔　高超（富山県立大学大学院 工学研究科），唐山　英明（富山県立大学大学院 工学研究科），木下　史也（富山県立大学大学院 工学研究科）

著者名(英語): Toumi Ohara (Graduate School of Engineering, Toyama Prefectural University), Gaochao Cui (Graduate School of Engineering, Toyama Prefectural University), Hideaki Touyama (Graduate School of Engineering, Toyama Prefectural University), Fumiya Kinoshita (Graduate School of Engineering, Toyama Prefectural University)

キーワード: 食後の眠気（PLD），事象関連電位（ERP），P300，随伴陰性変動（CNV），血糖値　　post-lunch dip，event-related potential，P300，contingent negative variation，blood glucose level

要約(英語): The sensation of drowsiness experienced around 2 PM, referred to as post-lunch dip (PLD), induces a decline in brain functions including attentiveness and levels of alertness. Such transient brain function declines instigated by PLD have been identified as potential catalysts for human errors. Therefore, it is important to demonstrate optimal intervention methods and preventive techniques to remedy this phenomenon. Our research experiment examined the influence of variations in mastication frequency during white rice consumption on blood glucose levels and event-related potential (ERP). Our study was conducted on fifteen young male participants. The measurements comprised of P300, CNV, blood glucose levels, and a questionnaire on sleepiness. We recorded ERP pre-consumption, immediately post-consumption, and 40 and 80 minutes after the meal. We employed packed rice as the dietary load and controlled the mastication frequency per mouthful at either 10 or 40 chews. Our results indicated that at 80 minutes post-consumption, when the mastication frequency was 10 chews compared to 40, there was an extended P300 latency, reduction in late CNV, increased reaction time, and decreased accuracy rate (p<0.05). These findings suggest that intensifying masticatory activity could effectively mitigate the transient decline in brain functions caused by PLD.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.144 No.7 （2024） 特集：2023年電子・情報・システム部門大会

本誌掲載ページ: 588-594 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/144/7/144_588/_article/-char/ja/