| Project/Area Number |
25330172
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Cognitive science
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| Research Institution | University of Shizuoka |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
秀島 雅之 東京医科歯科大学, 歯学部附属病院, 講師 (50218723)
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| Research Collaborator |
IMOTO Tomoaki 静岡県立大学, 経営情報学部, 助教 (20749296)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 音声セグメント / 疲労 / 心拍変動解析 / フリッカー値 / 唾液アミラーゼ / 自覚症しらべ / 基本周波数 / ストレス / 発話 / 音声分析 / 無酸素運動 / LF/HF / 疲労度評価 / 音声 / 継続時間 / 加速度脈波 |
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| Outline of Final Research Achievements |
To estimate degree of fatigue using speech, changes on speech caused by stressor were investigated. A correlation analysis and a multiple regression analysis were conducted between each fatigue degree index and speech parameter. Variable selection was performed in multiple regression analysis to predict the LF/HF. As a result, four phonetic segment labels in the utterance "ah" and in the utterance "oh", and F0 in the utterance "start" were selected as speech parameters. The correlation coefficient between the estimated and actual values became 0.98 in the arithmetic operation stressor and 0.90 in the anaerobic stressor. And it was shown that the speech parameters may substitute the LF/HF.
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