Alpha-band oscillation during speech recognition under different sensory conditions

Yanfei Lin, Zhiwen Liu*, Xiaorong Gao

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

4 引用 (Scopus)

摘要

The recognition mechanism of alpha-band oscillation for background EEG was analyzed during speech recognition under the auditory-only (A), audio-visual (AV) and visual-only (V) conditions. EEG signals for 20 university volunteers were measured at the SNRs of 0, -4, -8, -12 and -16 dB under the A, AV and V conditions. It was indicated that the task-relevant brain areas exhibited ERS under the different three sensory conditions. Brain region of A condition was distributed in the regions of frontal, central, and parietal, whereas those of AV and V conditions were concentrated in the parietal areas. Larger alpha-band power (ERS) of A condition was observed than those of AV and V conditions. The background brightness, objects recognition, relevant-task, and lip movement might contribute to the ERS. It was revealed that alpha-band oscillation can reflect the ability to process the background information for the human brain.

源语言英语
主期刊名Proceedings - 2015 8th International Conference on BioMedical Engineering and Informatics, BMEI 2015
编辑Zhiyong Tao, Li Bai, Sen Lin, Jinguang Sun, Lipo Wang, Liangshan Shao
出版商Institute of Electrical and Electronics Engineers Inc.
153-157
页数5
ISBN(电子版)9781509000227
DOI
出版状态已出版 - 8 2月 2016
活动8th International Conference on BioMedical Engineering and Informatics, BMEI 2015 - Shenyang, 中国
期限: 14 10月 201516 10月 2015

出版系列

姓名Proceedings - 2015 8th International Conference on BioMedical Engineering and Informatics, BMEI 2015

会议

会议8th International Conference on BioMedical Engineering and Informatics, BMEI 2015
国家/地区中国
Shenyang
时期14/10/1516/10/15

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