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Title
Japanese:日本語の母音音節および子音-母音音節の聴取と想像における脳波の比較分析 
English:Comparative EEG Analysis of Japanese Vowel Syllables and Consonant-Vowel Syllables during Auditory Perception and Imagery 
Author
Japanese: 濱田 陽大, 張 倬豪, RANGPONG Phurin, Connelly Akima, 八木 透.  
English: Haruto Hamada, Zhang Zhuohao, Phurin Rangpong, Akima Connelly, Tohru Yagi.  
Language Japanese 
Journal/Book name
Japanese: 
English: 
Volume, Number, Page        
Published date Mar. 19, 2026 
Publisher
Japanese: 
English: 
Conference name
Japanese:電気学会C部門 医用・生体工学研究会 
English: 
Conference site
Japanese: 
English: 
Abstract This study aims to develop a BCI utilizing EEG signals during speech perception as training data. To explore the characteristics of sounds, including known vowels and unexplored consonants, we compared EEG signals during perception and imagery for the vowel /a/ and the consonant-vowel /ka/, using ERP and ERSP. N200 and P300 were observed only during perception. However, no significant differences were found between tasks in the 4-8Hz band for /a/ and the 16-20Hz band for /ka/. Conversely, the right frontal beta ERD observed during /a/ imagery disappeared for /ka/. Future work will focus on model construction utilizing common components across both tasks and syllable-specific power fluctuations.

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