Measurements of the mu/beta ERD and gamma ERS during the imagination of body parts movement

Takahiro Matsunaga, Yoshinori Katayama, Takehito Hayami, Keiji Iramina

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

9 被引用数 (Scopus)

抄録

In recent years, many studies shows that the ERS (event-related synchronization) in the gamma band is associated with cortical activation during the imagination of body parts movement. It is also known that the ERD (event-related desynchronization) in the mu and beta band are caused by the imagination of body parts movement. In this study, we investigated the relationship between the gamma ERS and mu/beta ERDs. We recorded 64-channel EEG in order to obtain the power map of the gamma component. Furthermore, we compared the characteristics of the gamma waveform and mu/beta waveforms at the locations where the gamma ERS appeared clearly. As a result, we obtained three conclusions. Firstly, gamma ERS caused by the imagination of body parts movement appears at near somatosensory area and motor area. Gamma ERS caused by the imagination of right arm movement appears at the left side of the somatosenrosy area, that of left arm movement appears at the right side of the somatosensory area, and that of the foot movement appears at the center of the motor area. Secondly, mu/beta ERDs appear simultaneously with the preparation of the imagination, and they continue during the imagination. However, gamma ERS appeared simultaneously with the imagination of body parts movement. Finally, the power of the mu/beta component decrease gradually, but that of the gamma component increases significantly.

本文言語英語
ホスト出版物のタイトルProceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08
出版社IEEE Computer Society
ページ4130-4133
ページ数4
ISBN(印刷版)9781424418152
DOI
出版ステータス出版済み - 1 1 2008
イベント30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - Vancouver, BC, カナダ
継続期間: 8 20 20088 25 2008

出版物シリーズ

名前Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology"

その他

その他30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08
Countryカナダ
CityVancouver, BC
Period8/20/088/25/08

All Science Journal Classification (ASJC) codes

  • Computer Vision and Pattern Recognition
  • Signal Processing
  • Biomedical Engineering
  • Health Informatics

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