Effects of nonverbal behaviors on the perception of "skillfulness of speech" : Focusing on gestures during speech

ハナシテ ノ ヒゲンゴテキ コウドウ ガ ハナシ ノ ジョウズサ ニンチ ニ アタエル エイキョウ ハツワ ニ トモナウ ジェスチャー ニ チュウモクシテ

イソ, ユキコ

Iso, Yukiko

オオサカ ダイガク ダイガクイン ニンゲン カガク ケンキュウカ タイジン シャカイ シンリガク ケンキュウシツ

非言語的行動

発話に伴うジェスチャー

自然な発話刺激

社会的スキル

skillfulness of speech

nonverbal behavior

gesture during speech

social skill

a natural utterance

The purpose of this study was to investigate the effects of nonverbal behaviors, particularly gestures during speech, which speakers expressed in a natural utterance, toward the perception of “skillfulness of speech.” In Study 1, it was investigated which aspects of verbal and nonverbal behaviors of the speakers were related to “skillfulness of speech”, and the rating scales were made. Study 2 examined the relationship between the perception of “skillfulness of speech” and nonverbal behaviors, using three stimuli in which each stimulus person was explaining about a text or video task in one direction and different in frequency of spontaneous gestures under two conditions(the audio and video condition and the audio only condition). These results showed that the stimulus including many gestures was evaluated at the most skillful at speech, and the total number of gestures was significantly correlated with the evaluation of “skillfulness of speech.” However, the effects of visual behaviors were not found, and the utterance contents and Para-language were relatively important on the text reading task. These results suggested that gestures affect the perception of “skillfulness of speech.”