Inter-brain amplitude correlation differentiates cooperation from competition in a motion-sensing sports game

Author:

Liu Huashuo1ORCID,Zhao Chenying2,Wang Fei13,Zhang Dan13ORCID

Affiliation:

1. Department of Psychology, School of Social Sciences, Tsinghua University, Beijing 100084, China

2. Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China

3. Tsinghua Laboratory of Brain and Intelligence, Tsinghua University, Beijing 100084, China

Abstract

Abstract Cooperation and competition are two basic modes of human interaction. Their underlying neural mechanisms, especially from an interpersonal perspective, have not been fully explored. Using the electroencephalograph-based hyperscanning technique, the present study investigated the neural correlates of both cooperation and competition within the same ecological paradigm using a classic motion-sensing tennis game. Both the inter-brain coupling (the inter-brain amplitude correlation and inter-brain phase-locking) and the intra-brain spectral power were analyzed. Only the inter-brain amplitude correlation showed a significant difference between cooperation and competition, with different spatial patterns at theta, alpha and beta frequency bands. Further inspection revealed distinct inter-brain coupling patterns for cooperation and competition; cooperation elicited positive inter-brain amplitude correlation at the delta and theta bands in extensive brain regions, while competition was associated with negative occipital inter-brain amplitude correlation at the alpha and beta bands. These findings add to our knowledge of the neural mechanisms of cooperation and competition and suggest the significance of adopting an inter-brain perspective in exploring the neural underpinnings of social interaction in ecological contexts.

Funder

Tsinghua University Initiative Scientific Research Program

National Key Research and Development Plan of China

Deutsche Forschungsgemeinschaft

National Social Science Foundation of China

National Natural Science Foundation of China

Publisher

Oxford University Press (OUP)

Subject

Cognitive Neuroscience,Experimental and Cognitive Psychology,General Medicine

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