Effects of Motion and Voice of an Interactive Robot on Mood of Humans: A Pilot Study

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  • OYAMA Hideki
    National Institute of Occupational Safety and Health, Japan Graduate School of Biomedical Engineering, Tohoku University
  • KABE Akiyoshi
    Faculty of Human Sciences, Waseda University

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  • 対話型ロボットの動作と音声が感情状態に与える影響：予備調査
  • オープンデータ 対話型ロボットの動作と音声が感情状態に与える影響 : 予備調査
  • オープンデータ タイワガタ ロボット ノ ドウサ ト オンセイ ガ カンジョウ ジョウタイ ニ アタエル エイキョウ : ヨビ チョウサ

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<p>In this study, a questionnaire survey was conducted to determine whether the motion and voice of an interactive robot might affect the mood of humans. Forty-three nursing school students（mean age＝21; standard deviation＝5.4） were selected as the participants. The experimental apparatus was a pandatype robot used in health welfare fields, which was equipped with a pneumatic actuator for moving the head and limbs and a face/voice recognition unit. Four experimental conditions were set by combining the presence or absence of motion and voice as follows: 1） motionless, 2） motion, 3） voice, and 4） motion and voice. The images recorded for each condition were used as stimuli, and a multiple mood scale（MMS）was used as the evaluation scale. Two-way analysis of variance was carried out using motion and voice as the independent variables and each of the eight factors in MMS as the dependent variable. The robot's motion and voice enhanced “liveliness” but reduced “depression（anxiety）” and “boredom”; however, the positive effects were minimized by voice. The voice induced“ startle” but decreased “friendliness.” The findings suggest that the effects of a robot's motion and voice on mood are in a trade-off relationship. It is necessary to optimize not only the motion but also the voice elemental technologies in designing a more effective human-robot interaction.</p>

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