コミュニケーション場面における英語スピーキング不安の測定に向けた圧電センサの適応可能性

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  • コミュニケーション バメン ニ オケル エイゴ スピーキング フアン ノ ソクテイ ニ ムケタ アツデン センサ ノ テキオウ カノウセイ

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In this report, a flexible piezoelectric sensor sewn onto a cushion or glove was used to detect gestures, body motions, and heartbeats in a natural state during an English (as a foreign language) conversation. As the sensor has a thread-like structure made of poly-l-lactic acid fiber, it can be used as one of the braided threads of a braided cord or embroidered on fabric. The sensor can acquire biometric information from the cloth or fabric and be integrated into daily life without people being aware of it. In this study, signals obtained from the glove-type sensor increased in response to gestures and finger motions acquired by the camera. The percentage of signals obtained from the cushion-type sensor that could be recognized as heartbeat signals was increased by applying a filter to remove body motion. These improvements allow us to conduct easier and more natural sensing of psychological states

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