講演抄録/キーワード |
講演名 |
2018-01-26 16:55
音楽嗜好性脳波の脳波特徴について ○早田孝明・定久裕和・辻 湧弥・夏目季代久(九工大) NLP2017-87 |
抄録 |
(和) |
私達は以前より脳波(Electroencephalogram:EEG)を用いて操作出来る音楽プレーヤーの開発を行っている.先行研究[辻他,信学技報,2017]では,楽曲を聞いている間と楽曲が好きか嫌いかを判断する間でEEG測定し解析を行った.その結果,音楽嗜好性に相関のあるEEGが見つかった.先行研究では,EEG特徴としてEEGパワーについて調べた.本研究では,EEG特徴として位相同期性に着目し,位相同期性が音楽嗜好性で異なるかどうか,またEEGパワーとの違いを明らかにした.位相同期性の指標としては,phase locking value (PLV)を用いた.その結果,1)嗜好判断時にPLVが“好き”,“嫌い”で有意に異なる電極間ペアが見つかった.2)その時,EEGパワーでは有意な変化が無い参加者もいたが,PLVでは有意な電極間ペアがあった.3)嗜好判断時,コントロール時と比較して,有意にPLVが変化した電極ペアが全てのEEGで見つかった.4)そのうちθ波PLVが変化した電極ペアの数が経時的に下がった時,その後,“好き”と判断する傾向があった.以上の結果より,EEGパワーに比べて位相同期性の方が音楽嗜好性を判別するEEG特徴として良い特徴であると思われる. |
(英) |
We have developed the music players that can be operated using electroencephalogram (EEG). In the previous research [Tsuji et al., IEICE, 2017], they measured EEG while the participants were listening to music and while the participants were judging whether they like or dislike the music. As a result, EEG correlated with the music preferences was observed. In the previous research, EEG power was examined as the EEG features. In this study, we focused on the phase synchrony as the EEG features, and we clarified whether the synchrony between the recording electrodes is different dependent on the music preferences. The phase locking value (PLV) was used as the index of phase synchrony. As a result, 1) there were the significant differences of PLV in “like” and “dislike” preferences in the judging period. 2) While in some participants EEG powers were not different between “like” and “dislike” preferences, there were some pairs of electrodes which have the significant differences in PLV. 3) At the preference judging period, the pairs of electrodes which have the significant differences in PLV were seen in all frequency bands of EEG. 4) Among them, in PLV in the θ wave, there was a tendency in which when the participants judged the music as "like” the number of electrode pairs which have the significant difference in PLV decreased. From these results, it is suggested that the phase synchrony would be a better feature than EEG power for you to discriminate the music preferences. |
キーワード |
(和) |
脳波 / 音楽嗜好性 / 脳波パワー / 同期 / 位相 / / / |
(英) |
Electroencephalogram / Music preference / Electroencephalogram Power / synchronization / Phase / / / |
文献情報 |
信学技報, vol. 117, no. 415, NLP2017-87, pp. 7-12, 2018年1月. |
資料番号 |
NLP2017-87 |
発行日 |
2018-01-19 (NLP) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
NLP2017-87 |
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