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Physiological synchrony revealed by delayed coincidence count: Application to a cooperative complex environment

Verdière, Kevin J. and Albert, Mélisande and Dehais, Frédéric and Roy, Raphaëlle N. Physiological synchrony revealed by delayed coincidence count: Application to a cooperative complex environment. (2020) IEEE Transactions on Human-Machine Systems, 50 (5). 395-404.

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Official URL: https://doi.org/10.1109/THMS.2020.2986417


Synchrony at the physiological level is an objective measure that can be used to investigate cooperation between human agents. This physiological synchrony has been experimentally observed in different dyadic contexts through measures of the autonomous system such as cardiac measures. Various metrics were used to characterize synchrony between participants such as cross-correlation, weighted coherence or cross recurrence quantification analysis (CRQA) and with a wide variety of paradigms. We propose the delayed coincidence count as a new method for assessing cardiac synchrony. Delayed coincidence count has already been used to characterize synchrony in firing neurons populations. While being straightforward and computationally light, this method has already been formally proven to be statistically robust. A complex dynamic micro-world was designed with two difficulty levels and two cooperation conditions. Forty participants, i.e. 20 teams, voluntarily underwent the experiment. The delayed coincidence count method (with a coincidence threshold delta of 20 ms) revealed a significant synchrony (p < .01) during the cooperative and high difficulty condition only, while the other methods did not. The results are interpreted in terms of interaction intensity in accordance with recent literature.

Item Type:Article
Additional Information:Thanks to the IEEE (Institute of Electrical and Electronics Engineers). This paper is available at : https://ieeexplore.ieee.org/document/9116829 “© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
HAL Id:hal-03896130
Audience (journal):International peer-reviewed journal
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Institution:Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
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Deposited On:13 Dec 2022 10:35

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