2023 Fiscal Year Final Research Report
Study of deep brain activation method using bone conducted wide band sound
| Project/Area Number |
20K12607
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 90110:Biomedical engineering-related
|
|---|
| Research Institution | The Open University of Japan |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
片桐 祥雅 東京大学, 大学院工学系研究科(工学部), 上席研究員 (60462876)
|
|---|
| Project Period (FY) |
2020-04-01 – 2024-03-31
|
| Keywords | 環境音 / 脳機能 |
|---|
| Outline of Final Research Achievements |
To confirm the deep brain activity induced by bone conduction in the head, transducers that can be placed in contact with the head and can generate ultrasonic waves in the audible to 100 kHz range were used to present several bands of ultrawideband sounds and simultaneously measure brain functions by bone conduction stimulation input from the temporal region. The results were discussed from the viewpoint of deep brain activity by focusing on the EEG alpha 2 band power in the occipital region after the start and end of acoustic presentation. The tendency to increase the power in this EEG band at the beginning of the presentation and to stop the increase after the end of the presentation was observed for gamma-wave band sounds, ultrasonic sounds in the band around 30 kHz, and natural sounds including non-audible high frequency bands.
|
| Free Research Field |
ヒューマンインターフェース
|
| Academic Significance and Societal Importance of the Research Achievements |
本研究では，聴覚でもなく体性感覚でもない骨伝導を活用した，非可聴域高周波を含む超広帯域音響の頭部入力による深部脳活性の効果について，深部脳活性指標とされている脳波帯域パワー解析手法を用いて検証を行った．脳幹部に効率的に音波を伝達させるための音波トランスデューサを使用し，脳深部神経の賦活を測定し，深部脳を活性化させる効果があることを確認することで，日常生活で利用できる健康増進装置としての応用を見込むことのできる脳幹部への超広帯域音響（振動）刺激の入力による深部脳賦活の可能性を示した．
|
