2024-03-19T13:13:56Zhttps://ipsj.ixsq.nii.ac.jp/ej/?action=repository_oaipmhoai:ipsj.ixsq.nii.ac.jp:002186152023-04-27T10:00:04Z01164:02735:10865:10962
視聴覚ノイズがMcGurk効果と事象関連電位に及ぼす影響Electrophysiological Indices of the McGurk Effect in Audiovisual Noisejpnhttp://id.nii.ac.jp/1001/00218507/Technical Reporthttps://ipsj.ixsq.nii.ac.jp/ej/?action=repository_action_common_download&item_id=218615&item_no=1&attribute_id=1&file_no=1Copyright (c) 2022 by the Institute of Electronics, Information and Communication Engineers This SIG report is only available to those in membership of the SIG.立命館大学大学院情報理工学研究科立命館大学大学院情報理工学研究科肖, 賦聖坪, 泰宏マガーク効果は,Ga の口の動きに,Ba の音声を重ねた映像を呈示した場合,人は Da と認識する錯覚現象である.この錯覚現象は視聴覚統合を研究するための有効的な実験方法としてよく使われている.しかし,視聴覚情報が不十分の場合に生じるマガーク効果についてはあまりよくわかっていない.近年,マガーク効果が,オドボール課題で脳波の事象関連電位(ミスマッチ陰性電位)に反映されていることが報告されている.そこで本研究では,2 種類のオドボール課題を用いて,視聴覚ノイズの強さがマガーク効果の発生率に与える影響を調べ,それらを反映するような脳活動を脳波の事象関連電位を用いて調べた.結果として,聴覚ノイズはマガーク効果の発生を促進し,視覚ノイズはマガーク効果の発生を抑制するという,Stacey らの報告 (2021) を再現した.また,マガーク効果が発生した割合が大きかった聴覚ノイズを加えた場合においては,標的刺激と標準刺激の間で,350ms 付近で事象関連電位に差が見られた.The McGurk effect is an illusory phenomenon in which a person perceives "Da" when presented with an image in which the sound of "Ba" is superimposed on the mouth movement of "Ga". This illusion is often used as an effective experimental method to study audiovisual integration. However, the McGurk effect in situations with insufficient audiovisual information is not well understood. Recently, it has been reported that the McGurk effect is reflected in the event-related potentials (mismatch negativity) of the electroencephalogram (EEG) in the oddball task. In this study, we investigated the effects of the intensity of audiovisual noise on the incidence of the McGurk effect using two types of oddball tasks, and examined the brain activity that reflects the McGurk effect using event-related potentials in the electroencephalogram. The results were consistent with the report by Stacey et al (2021). that auditory noise enhances the incidence of the McGurk effect and visual noise suppresses the incidence of the McGurk effect. Furthermore, when a large auditory noise was applied, which induced a strong McGurk effect, a significant difference was observed in event-related potentials at around 350 ms between the target and standard stimuli.AN10505667研究報告数理モデル化と問題解決(MPS)2022-MPS-13845152022-06-202188-88332022-06-17