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Cited by 317

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The mirror game as a paradigm for studying the dynamics of two people improvising motion together

Open access
Noy, Lior, Dekel, Erez, Alon, Uri·2011·Proceedings of the National Academy of Sciences

Abstract

Joint improvisation is the creative action of two or more people without a script or designated leader. Examples include improvisational theater and music, and day-to-day activities such as conversations. In joint improvisation, novel action is created, emerging from the interaction between people. Although central to creative processes and social interaction, joint improvisation remains largely unexplored due to the lack of experimental paradigms. Here we introduce a paradigm based on a theater practice called the mirror game. We measured the hand motions of two people mirroring each other at high temporal and spatial resolution. We focused on expert actors and musicians skilled in joint improvisation. We found that players can jointly create novel complex motion without a designated leader, synchronized to less than 40 ms. In contrast, we found that designating one player as leader deteriorated performance: The follower showed 2–3 Hz oscillation around the leader's smooth trajectory, decreasing synchrony and reducing the range of velocities reached. A mathematical model suggests a mechanism for these observations based on mutual agreement on future motion in mirrored reactive–predictive controllers. This is a step toward understanding the human ability to create novelty by improvising together.

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Metadata

Authors
Noy, L., Dekel, E., & Alon, U.
Venue
Proceedings of the National Academy of Sciences
Published
2011-12-12
Volume
108
Issue
52
Pages
20947-20952
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2026557623
Cited by
317
References
32
FWCI
15.18
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The mirror game as a paradigm for studying the dynamics of two people improvising motion together. https://app.cochat.ai/papers/10.1073/pnas.1108155108
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Noy, L., Dekel, E., & Alon, U. (2011). The mirror game as a paradigm for studying the dynamics of two people improvising motion together. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1108155108

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