| Presentation | 2018-03-19 [Poster Presentation] Investigation of Brain Magnetic Fields Associated with Sound Imagery Shihomi Uzawa, Tetsuya Takiguchi, Yasuo Ariki, Yoshiharu Soeta, Seiji Nakagawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Brain computer interface (BCI) technologies, which enable direct communication between the brain and external devices, have been developed. However, with most of the BCI systems, users can only choose something from among what was prepared in advance. To develop more versatile BCI systems that can detect a user's intention or thoughts, the brain responses associated with verbal imagery need to be clarified. However, it was unclear how each parameter of the imagined sound reflected to the brain response associated with sound imagery. Therefore, in this study, we investigated relationships between the amplitude-envelope of the imagined sound and brain activity. First, the time-frequency features were extracted from brain responses for the imagery of speech sounds and pure tones with same envelopes with speech sounds using a continuous wavelet transform (CWT) and a principal component analysis (PCA). Finally, the discriminative accuracy was compared using a support vector Machine (SVM). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | magnetoencephalography / speech sound imagery / envelope of amplitude / pure tone |
| Paper # | EA2017-115,SIP2017-124,SP2017-98 |
| Date of Issue | 2018-03-12 (EA, SIP, SP) |
| Conference Information | |
| Committee | SIP / EA / SP / MI |
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| Conference Date | 2018/3/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Speech, Engineering/Electro Acoustics, Signal Processing, and Related Topics [SIP, EA, SP]/ Medical Image Engineering, Analysis, Recognition, etc. [MI] |
| Chair | Masahiro Okuda(Univ. of Kitakyushu) / Suehiro Shimauchi(NTT) / Yoichi Yamashita(Ritsumeikan Univ.) / Kensaku Mori(Nagoya Univ.) |
| Vice Chair | Shogo Muramatsu(Niigata Univ.) / Naoyuki Aikawa(TUS) / Mitsunori Mizumachi(Kyutech) / Hiroki Mori(Utsunomiya Univ.) / Yoshiki Kawata(Tokushima Univ.) / Yuichi Kimura(Kinki Univ.) |
| Secretary | Shogo Muramatsu(Chiba Inst. of Tech.) / Naoyuki Aikawa(Takushoku Univ.) / Mitsunori Mizumachi(Akita Pref. Univ.) / Hiroki Mori(Shizuoka Inst. of Science and Tech.) / Yoshiki Kawata(Shizuoka Univ.) / Yuichi Kimura(Meijo Univ.) |
| Assistant | Masayoshi Nakamoto(Hiroshima Univ.ひろ) / TREVINO Jorge(Tohoku Univ.) / Nobutaka Ito(NTT) / Kei Hashimoto(Nagoya Inst. of Tech.) / Satoshi Kobashikawa(NTT) / Ryo Haraguchi(Univ. of Hyogo) / Yasushi Hirano(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Signal Processing / Technical Committee on Engineering Acoustics / Technical Committee on Speech / Technical Committee on Medical Imaging |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Investigation of Brain Magnetic Fields Associated with Sound Imagery |
| Sub Title (in English) | Speech and Pure Tone with Similar Envelopes |
| Keyword(1) | magnetoencephalography |
| Keyword(2) | speech sound imagery |
| Keyword(3) | envelope of amplitude |
| Keyword(4) | pure tone |
| 1st Author's Name | Shihomi Uzawa |
| 1st Author's Affiliation | Kobe University/National Institute of Advanced Industrial Science and Technology(Kobe Univ./AIST) |
| 2nd Author's Name | Tetsuya Takiguchi |
| 2nd Author's Affiliation | Kobe University(Kobe Univ.) |
| 3rd Author's Name | Yasuo Ariki |
| 3rd Author's Affiliation | Kobe University(Kobe Univ.) |
| 4th Author's Name | Yoshiharu Soeta |
| 4th Author's Affiliation | National Institute of Advanced Industrial Science and Technology(AIST) |
| 5th Author's Name | Seiji Nakagawa |
| 5th Author's Affiliation | Chiba University/National Institute of Advanced Industrial Science and Technology(Chiba Univ./AIST) |
| Date | 2018-03-19 |
| Paper # | EA2017-115,SIP2017-124,SP2017-98 |
| Volume (vol) | vol.117 |
| Number (no) | EA-515,SIP-516,SP-517 |
| Page | pp.pp.81-86(EA), pp.81-86(SIP), pp.81-86(SP), |
| #Pages | 6 |
| Date of Issue | 2018-03-12 (EA, SIP, SP) |