| 講演抄録/キーワード |
| 講演名 |
2023-12-21 11:00
Natural finger-tapping tempo reflects intrinsic neurophysiological characteristics
-- Neural correlates of natural tempo -- ○Sai Sun(Tohoku Univ.)・Daw-An Wu・Mohammad Shehata(Caltech)・Takuya Akashi・Morimichi Furudate(Iwate Univ.)・Chao Zhang(Fukui Univ.)・Ken-Ichiro Tsutsui・Satoshi Shioiri(Tohoku Univ.)・Shinsuke Shimojo(Caltech) HIP2023-77 |
| 抄録 |
(和) |
Individuals often have a natural rhythm or speed in their motor activities, such as walking and talking. What remains largely unknown is how our brain generates and represents natural tempo to modulate various sensory-motor functions. To this end, we employed a series of finger-tapping tasks, spontaneous and constrained, to monitor an individual's natural tapping tempo while applying electroencephalography. Results indicated that natural tapping had no changes between sessions and the least variations within sessions compared to constrained tapping, as represented by increased positive motor-evoked potentials (MEP), increased theta and alpha power, and decreased source activity in the central executive network (CEN), demonstrating a unique brain state with less cognitive control. Furthermore, the individual difference in natural tapping tempo was linked to the variability in the frontal MEP signals and source activity in the CEN. This study provides a neurocognitive account of natural tempo that could be an intrinsic neurophysiological “fingerprint” of individuals. |
| (英) |
Individuals often have a natural rhythm or speed in their motor activities, such as walking and talking. What remains largely unknown is how our brain generates and represents natural tempo to modulate various sensory-motor functions. To this end, we employed a series of finger-tapping tasks, spontaneous and constrained, to monitor an individual's natural tapping tempo while applying electroencephalography. Results indicated that natural tapping had no changes between sessions and the least variations within sessions compared to constrained tapping, as represented by increased positive motor-evoked potentials (MEP), increased theta and alpha power, and decreased source activity in the central executive network (CEN), demonstrating a unique brain state with less cognitive control. Furthermore, the individual difference in natural tapping tempo was linked to the variability in the frontal MEP signals and source activity in the CEN. This study provides a neurocognitive account of natural tempo that could be an intrinsic neurophysiological “fingerprint” of individuals. |
| キーワード |
(和) |
Natural tempo / Finger-tapping / Individual difference / Electroencephalogram (EEG) / Neural oscillator / Central executive network / / |
| (英) |
Natural tempo / Finger-tapping / Individual difference / Electroencephalogram (EEG) / Neural oscillator / Central executive network / / |
| 文献情報 |
信学技報, vol. 123, no. 320, HIP2023-77, pp. 5-12, 2023年12月. |
| 資料番号 |
HIP2023-77 |
| 発行日 |
2023-12-14 (HIP) |
| ISSN |
Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
HIP2023-77 |