A study on location measurement of brain signal source in daily life for measurement of mind state

2023 Fiscal Year Final Research Report

• Project/Area Number: 22K21222
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0909:Sports sciences, physical education, health sciences, and related fields
• Research Institution: Ritsumeikan University
• Principal Investigator: Sakaue Yusuke 立命館大学, 立命館グローバル・イノベーション研究機構(BKC), 助教 (80772368)
• Project Period (FY): 2022-08-31 – 2024-03-31
• Keywords: 脳活動 / イメージング / 脳波 / 信号源位置 / 日常生活

Outline of Final Research Achievements

As the mind state greatly affects mental and physical health, it is important to measure and evaluate it on a daily life, but no objective evaluation method has been established. In this study, it was focused on that the mind state is on basis of brain electrical activity, i.e., brain signal source, and its location measurement system using electroencephalograms acquired in daily life was developed. Ultimate goal of this study is measuring the mind state using brain signal source location. The signal source location estimation technology using a switching voltage divider electrode, which was developed prior to this study was used. In previous methods, it was difficult to measure the brain signal source location constantly changes according to the brain activity such as the mind state. In this study, a novel measurement circuit that solved this problem was realized, and a measurement system that can be applied in daily life was developed.

Free Research Field

生体医工学

Academic Significance and Societal Importance of the Research Achievements

本研究で開発した計測システムを用いることで、客観的な評価方法が確立されていないヒトの心の状態を脳活動から評価することが可能となる。心の状態は、ヒトの心身の健康状態に大きく関連していることから、健康状態の維持・増進に貢献することが期待できる。また、本研究で開発した計測システムは日常生活環境における脳活動の詳細な観察を可能とするため、脳科学分野の幅広い躍進への貢献が期待される。