周波数タグ付けを用いたオクターブ錯聴における聴覚情報処理

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2020/07/01

タイトル(英語): Neural Processing of Octave Illusion in Auditory Cortex Revealed by Frequency Tagging Method

著者名: 相沢　圭輝（東京電機大学大学院理工学研究科），Nina　Pilyugina（東京電機大学大学院先端科学技術研究科），塚原　彰彦（東京電機大学大学院理工学研究科），田中　慶太（東京電機大学大学院理工学研究科）

著者名(英語): Yoshiki Aizawa (Graduate School of Science and Engineering, Tokyo Denki University), Nina Pilyugina (Graduate School of Advanced Science and Technology, Tokyo Denki University), Akihiko Tsukahara (Graduate School of Science and Engineering, Tokyo Denki University), Keita Tanaka (Graduate School of Science and Engineering, Tokyo Denki University)

キーワード: 錯聴，周波数タグ付け，聴性定常応答　　auditory illusion，frequency tagging method，auditory steady-state responses

要約(英語): We measured the auditory steady state responses (ASSR) in a magnetoenchephalogram to study the mechanism of neural processing in the auditory cortex with octave illusion proposed by Diana Deutsch. Octave illusion is induced using consecutive dichotic sounds, where two tones that are one octave apart, e.g., 400 and 800 Hz, are alternated between the ears at 500-ms intervals. We then applied the frequency tagging method to the ASSRs that were recorded during the octave illusion. We compared the ASSR amplitude between non-illusion and illusion groups. The results showed that there was difference in the ASSR amplitude of the auditory cortex between the illusion and the non-illusion groups. In non-illusion group, the ASSR was showed right hemisphere dominance and contralateral activation. There was no significant difference in the illusion group. These results suggest that right hemisphere dominance and contralateral activation are related to neural processing of the octave illusion.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.140 No.7 （2020） 特集：2019年電子・情報・システム部門大会

本誌掲載ページ: 762-768 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/140/7/140_762/_article/-char/ja/