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KAKEN_26730078seika.pdf
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Title |
Title |
脳リズム構造に着目したマルチモーダル感覚情報処理機構の解明
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ノウ リズム コウゾウ ニ チャクモクシタ マルチモーダル カンカク ジョウホウ ショリ キコウ ノ カイメイ
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No rizumu kozo ni chakumokushita maruchimodaru kankaku joho shori kiko no kaimei
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Clarification of the multisensory information processing mechanism with a focus on brain rhythm structure
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青山, 敦
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アオヤマ, アツシ
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Aoyama, Atsushi
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慶應義塾大学・環境情報学部・准教授
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Research team head
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科研費研究者番号 : 40508371
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2017
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科学研究費補助金研究成果報告書
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2016
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左右が反転した立体音響空間をウェアラブルに実現し, この特殊空間への約1ヶ月間に亘る接触時における順応過程を脳磁界計測法を用いて調べた。この接触によって, 新しい統合ルールに基づいて情報間の誤差を補正する知覚と関連した早い順応, 統合処理の優先度を変化させる行動と関連した遅い順応, およびそれらの中間過程の存在が明らかになった。また早い順応と遅い順応は, 各々, 脳リズムと誘発応答に反映されていると考えられた。マルチモーダル感覚情報処理は, 一般にユニモーダルな脳活動の和では説明できない付加活動の観点から議論されてきたが, 動的特性を有する構造化された脳リズムも重要であることが本研究によって明らかになった。
Left-right reversed stereophonic space was achieved in a wearable manner, and adaptation processes during about one-month exposure to this unusual space were examined using magnetoencephalography. The exposure revealed the presence of early adaptation related to perception in which cross-sensory errors are compensated based on a new integration rule, late adaptation related to behavior in which a priority of integration processing is changed, and their intermediate process. Moreover, the early and late adaptations are considered to be reflected in brain rhythms and evoked responses, respectively. Although multisensory information processing has been typically discussed from a viewpoint of additive brain activity that cannot be explained by a summation of unimodal activity, this study revealed the importance of structured brain rhythms with dynamic characteristics in addition to it.
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研究種目 : 若手研究(B)
研究期間 : 2014~2016
課題番号 : 26730078
研究分野 : 脳情報学
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Jul 30, 2019 | | 著者,抄録 内容,本文URI URI を変更 |
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