Heartbeat Communication

触覚で相手の鼓動を感じると心理的距離が縮まる

スキル

Python / Photoshop /
Human participants Experiment

キーワード

Affective Haptics / Social Touch / Heartbeat

背景

現在のオンラインコミュニケーションでは映像や音声などの視聴覚情報が中心ですが，対面のコミュニケーションではハグや握手などの触れ合いも重要な要素の一つです。オンラインコミュニケーションにも触覚を用いた触れ合いを取り入れることでより豊かな体験が創出できる可能性があります。

鼓動には感情の状態によって心拍数が変化するため，鼓動を感じることで相手の感情状態に関する情報を得ることができます。「心臓ピクニック」と呼ばれるワークショップで使用されたデバイスで，NTTコミュニケーション科学基礎研究所の渡邊淳司さん[1]によって開発されました。ワークショップの参加者はこのデバイスを通じて，自分や他者の鼓動を振動として感じました。このデバイスをオンラインコミュニケーション中に使用することで通話者同士の関係性に影響を与える可能性があります。

Experiment

We conducted subjective and behavioral tests of the relationship. The subjective method was Inclusion of Other in the Self scale (IOS) [2], which can measure how close a person feels to another person. The behavioral method was Ultimatum Game [3], which is the game of money distribution. In the game, players can tolerate an unfair situation where the other person is given more money when the players feel the other person close.

Subjective test

Participants were asked to select one figure among seven figures in the below picture. 栗原さん is the fake name of the experimenter and あなた is you in Japanese. The more the two circles overwrap, the participants feel the experimenter close.

Behavioral test

At the beginning of Ultimatum Game, participants receive an offer of 500 yen distributed between the participants (あなた) and the experimenter, with a fake name 栗原さん. They can select accept (受け取る) or reject (拒否する) the offer. When they accept the offer, both the participants and the experimenter received the distributed money. However, when they reject, neither receive any money. People accept more unfair offers such as the below image when they feel the other player close.

Result

主観評価(IOS尺度)の結果から，ビデオ通話中に触覚を通じて相手の鼓動を感じると心理的距離が縮まることが明らかになった。

Publication

N. Kameyama, A. Murata, J. Watanabe, H.-N. Ho: "Influence of touching heartbeat on emotional state and interpersonal closeness," Transactions of the Virtual Reality Society of Japan, vol.28, (4), pp. 321-324, 2023, https://doi.org/10.18974/tvrsj.28.4_321

References

[1]J. Watanabe, Y. Kawaguchi, K. Sakakura, H. Ando : “Heartbeat Picnic”: Workshop for Touching Heartbeats; Transactions of the Virtual Reality Society of Japan, vol. 16, no. 3, pp. 303-306, 2011, (in Japanese).

[2]A. Aron, E. N. Aron, and D. Smollan: Inclusion of Other in the Self Scale and the structure of interpersonal closeness; Journal of Personality and Social Psychology, vol. 63, no. 4, pp. 596–612, 1992.

[3]Ultimatum Game, https://www.sciencedirect.com/topics/neuroscience/ultimatum-game#:~:text=In%20the%20ultimatum%20game%20(G%C3%BCth,both%20players%20get%20US%240.

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