脳磁界聴性定常応答の位相同期の刺激強度依存性

• 田中 慶太

  東京電機大学先端工学研究所

書誌事項

タイトル別名

• The dependency of Phase Synchronization of Auditory Steady State Responses (ASSR) on Stimulus Intensity
• ノウ ジカイ チョウセイ テイジョウ オウトウ ノ イソウ ドウキ ノ シゲキ キョウド イソンセイ

抄録

Magnetoencephalography (MEG) was recorded to detect the 40 Hz component in auditory steady-state responses (ASSRs) to stimuli (optimized chirp sounds) regularly repeated 40 times/s. The phase of 40 Hz component in ASSRs was synchronized to the repeated chirps. To obtain information on its mechanism, we used a differential-equation model for phase synchronization of ASSRs. The differential equation was numerically solved by the Runge-Kutta Method to obtain simulated results. The behavior of phase coherence of 40 Hz component in ASSRs obtained from the experimental results was compared with that shown by the simulated results and the simulated result predicted its experimental result to a satisfactory degree. In addition, the parameter representing the external force by stimulus in the model was found to be significantly influenced by the stimulus intensity. These results suggest that the model is validity.

収録刊行物

• 日本応用磁気学会誌

  日本応用磁気学会誌 31 (3), 273-278, 2007

  公益社団法人 日本磁気学会

キーワード

• magnetoencephalography (MEG)
• auditory steady-state response (ASSR)
• differential equation model
• phase synchronization
• stimulus intensity

詳細情報

• CRID: 1390282680069395968
• NII論文ID: 110006277489
• NII書誌ID: AN0031390X
• DOI: 10.3379/jmsjmag.31.273
• ISSN: 18804004
• ISSN: 02850192
• NDL書誌ID: 8807849
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8807849
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10467582
• 本文言語コード: ja
• データソース種別:
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  • NDL
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• 抄録ライセンスフラグ: 使用不可