Interpersonal neural synchrony when predicting others’ actions during a game of 
rock-paper-scissors

Kayhan, Ezgi; Nguyen, T.; Matthes, Daniel; Langeloh, Miriam; Michel, Christine; Jiang, J.; Hoehl, Stefanie

doi:10.1038/s41598-022-16956-z

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Interpersonal neural synchrony when predicting others’ actions during a game of rock-paper-scissors

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Kayhan, Ezgi
Max Planck Research Group Early Social Cognition, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Department of Developmental Psychology, University of Potsdam, Germany;

Nguyen, T.
Max Planck Research Group Early Social Cognition, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Faculty of Psychology, University Vienna, Austria;
Italian Institute of Technology (IIT) – Center for Life Nano Science, Rome, Italy;

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Matthes, Daniel
Max Planck Research Group Early Social Cognition, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Laboratory for Biosignal Processing (LaBP), University of Applied Sciences, Leipzig, Germany;

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Langeloh, Miriam
Max Planck Research Group Early Social Cognition, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Department of Psychology, University of Heidelberg, Germany;

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Michel, Christine
Max Planck Research Group Early Social Cognition, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Faculty of Education, University of Leipzig, Germany;

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Hoehl, Stefanie
Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Faculty of Psychology, University Vienna, Austria;

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Citation

Kayhan, E., Nguyen, T., Matthes, D., Langeloh, M., Michel, C., Jiang, J., et al. (2022). Interpersonal neural synchrony when predicting others’ actions during a game of rock-paper-scissors. Scientific Reports, 12(1): 12967. doi:10.1038/s41598-022-16956-z.

Cite as: https://hdl.handle.net/21.11116/0000-000A-E1A9-9

Abstract

As members of a social species, we spend most of our time interacting with others. In interactions, we tend to mutually align our behavior and brain responses to communicate more effectively. In a semi-computerized version of the Rock-Paper-Scissors game, we investigated whether people show enhanced interpersonal neural synchronization when making explicit predictions about others’ actions. Across four experimental conditions, we measured the dynamic brain activity using the functional near-infrared spectroscopy (fNIRS) hyperscanning method. Results showed that interpersonal neural synchrony was enhanced when participants played the game together as they would do in real life in comparison to when they played the game on their own. We found no evidence of increased neural synchrony when participants made explicit predictions about others’ actions. Hence, neural synchrony may depend on mutual natural interaction rather than an explicit prediction strategy. This study is important, as it examines one of the presumed functions of neural synchronization namely facilitating predictions.