Illustrative researches suggest that a coordinated relational system between a performer and audience affects on humor elicitation process in vaudeville settings. The present study investigated how the system was formed and developed along with a flow of a story. 7 participants including 4 targets sat down face to face with a performer and watched Rakugo (a Japanese traditional performing art) performance. With using coordination of motion as a quantitative indicator, not only duration of coordination between a performer and each target but also its phase difference were examined. The results demonstrated that the humor scores measured by facial expression were higher for audience who were more strongly coordinated with the performer, compared to audience weakly coordinated. For the highest humor scored audience, in contrast to the lowest scored audience, larger coordinated areas emerged and audience-preceding coordination were established at early stage of the story. Even the lowest humor scored audience, the humor score increased in latter part of the story, following the audience-preceding coordination rising. These results suggest that it is important for humor elicitation to occur audience-preceding coordination based on a performer-audience system, where audience actively anticipate next story line, while a performer acts reflecting audience′s response to construct vaudeville settings each other.

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