A dance performance is a one-of-a-kind experience that enables dancers and the audience to share "a thing" beyond words. As the dancers feel "a thing" flowing out of the energy that fills the space, they will dance. Simultaneously, the audience will imagine "a thing" in their mind, and without realizing it, they will, too, emit an invisible response. The moment the invisible becomes visible, what kind of relationship is born between the dancer and the audience? Boiling Mind is a contemporary dance performance for connecting dancers and audiences. During the performance, the audiences wear a pulse sensor and eye-tracking device to generate data that will be visualized later on. The visualization will become a part of the stage design and create a connection between the dancer and the audience. (performance: 2019.11.4 at SessionHouse,Tokyo,Japan)

"Boiling Mind" is a contemporary dance performance for connecting dancers and audiences. To join them," Boiling Mind" designed the invisible reaction of the audience. During the dance performance, the audiences wear pulse sensors and eye-tracking devices to generate data that will be visualized later on. The visualization will become a part of the stage design and create a connection between the dancer and the audience. There are 5 types of visuals. 1) Blink detection; when the audience blinks at the same time, the color of the visual will change. This moment implies that both dancers and audiences are in their highest focus level . 2) Gaze measurement; the actual image of the audience's eyes will be projected. The sensor will follow the audience's gaze direction and recognize what they are concentrating on in real-time. 3) Heartbeat waveforms; Heartbeat of the audiences will be visualized as waveforms. At the same time, the color will change with every heartbeat. 4) Engagement level indicator HF_LF; This visualization shows the audience's level of engagement. Blue indicates the most relaxed state, and red indicates the most engaged time.5) Sound level; the difference in sound level in the bolero music will be visualized as well. The louder the sound, the visual will expand, and vice verse. This performance was held at SessionHouse (Kagurazaka, Tokyo, Japan), and 80 audiences came there.

"Boiling Mind" is a joint research between contemporary dance company 'Mademoiselle Cinema' and Keio university graduate school of Media Design. First, a dance workshop was held with dancers and the audience. It was found that the audience unconsciously created a virtual wall with the dancer. Therefore, we found that the "collective effervescence" (flow state) is effective in melting the dancers and the audience. Hence we made VR work "BoilingWave" aiming at collective effervescence, exhibited at the IEEE World Haptics Student Challenge. These players felt the existence of others in a pseudo manner. From these prototypes, this dance performance was performed. In this performance, sensors were used to generate the audience's biological reactions. A pulse sensor was used for the heart rate of the audience (the HF_LF ratio of the pulse sensor was modeled by the Welch method.), Pupil labs were used for eye tracking, and JINS MEME was used for blink detection. Each data was edited with the visual programming tool 'TouchDesigner,' and then masked with Mapmapper and Kantanmapper on the screen frame on the stage. The screen uses a stainless steel mesh from Asada Mesh Co., Ltd. The stainless steel mesh material was used in the box where the audience's sensors were placed, and the audiences themselves became stage art.

Dance Performance Theater: Kagurazaka Session House (131 square meters)