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Conscious processing of narrative stimuli synchronizes heart rate between individuals

Pauline Pérez, View ORCID ProfileJens Madsen, Leah Banellis, Başak Türker, Federico Raimondo, Vincent Perlbarg, Melanie Valente, Marie-Cécile Niérat, Louis Puybasset, View ORCID ProfileLionel Naccache, Thomas Similowski, Damian Cruse, View ORCID ProfileLucas C Parra, View ORCID ProfileJacobo D Sitt
doi: https://doi.org/10.1101/2020.05.26.116079
Pauline Pérez
1Paris Brain Institute, ICM, F-75013, Paris, France
2Inserm U 1127, F-75013, Paris, France
3CNRS UMR 7225, F-75013, Paris, France
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Jens Madsen
4Department of Biomedical Engineering, City College of New York, New York, USA
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  • ORCID record for Jens Madsen
Leah Banellis
5School of Psychology, University of Birmingham, Birmingham, B15 2TT, England
6Centre for Human Brain Health, University of Birmingham, Birmingham, B15 2TT, England
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Başak Türker
1Paris Brain Institute, ICM, F-75013, Paris, France
2Inserm U 1127, F-75013, Paris, France
3CNRS UMR 7225, F-75013, Paris, France
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Federico Raimondo
1Paris Brain Institute, ICM, F-75013, Paris, France
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Vincent Perlbarg
7Bioinformatics and Biostatistics Core Facility, iCONICS, IHU-A-ICM, Institut du Cerveau et de la Moelle épinière, Paris, France
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Melanie Valente
1Paris Brain Institute, ICM, F-75013, Paris, France
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Marie-Cécile Niérat
12Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005 Paris, France
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Louis Puybasset
8Department of Anesthesia and Intensive Care, Pitié-Salpetrière Hospital, Paris, France
9Sorbonne Université, CNRS, INSERM, Laboratoire d’Imagerie Biomédicale, LIB, Paris, France
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Lionel Naccache
1Paris Brain Institute, ICM, F-75013, Paris, France
2Inserm U 1127, F-75013, Paris, France
3CNRS UMR 7225, F-75013, Paris, France
10Department of Neurophysiology, Hôpital de la Pitié-Salpetrière, AP-HP, F-75013, Paris, France
11Faculté de Médecine Pitié-Salpêtrière, Sorbonne Université, 75013, Paris, France
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Thomas Similowski
12Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005 Paris, France
13AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Pneumologie, Médecine Intensive et Réanimation (Département R3S), F-75013 Paris, France
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Damian Cruse
5School of Psychology, University of Birmingham, Birmingham, B15 2TT, England
6Centre for Human Brain Health, University of Birmingham, Birmingham, B15 2TT, England
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Lucas C Parra
4Department of Biomedical Engineering, City College of New York, New York, USA
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Jacobo D Sitt
1Paris Brain Institute, ICM, F-75013, Paris, France
2Inserm U 1127, F-75013, Paris, France
3CNRS UMR 7225, F-75013, Paris, France
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  • For correspondence: jacobo.sitt@inserm.fr
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Abstract

Heart rate has natural fluctuations that are typically ascribed to autonomic function. Recent evidence suggests that conscious processing can affect the timing of the heartbeat. We hypothesized that heart rate is modulated by conscious processing and therefore dependent on attentional focus. To test this, we leverage the observation that neural processes can be synchronized between subjects by presenting an identical narrative stimulus. As predicted, we find significant inter-subject correlation of the heartbeat (ISC-HR) when subjects are presented with an auditory or audiovisual narrative. Consistent with the conscious processing hypothesis, we find that ISC-HR is reduced when subjects are distracted from the narrative, and that higher heart rate synchronization predicts better recall of the narrative. Finally, patients with disorders of consciousness who are listening to a story have lower ISC-HR, as compared to healthy individuals, and that individual ISC-HR might predict a patients’ prognosis.. We conclude that heart rate fluctuations are partially driven by conscious processing, depend on attentional state, and may represent a simple metric to assess conscious state in unresponsive patients.

Competing Interest Statement

The authors have declared no competing interest.

Footnotes

  • https://osf.io/mhvy7/

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted November 16, 2020.
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Conscious processing of narrative stimuli synchronizes heart rate between individuals
Pauline Pérez, Jens Madsen, Leah Banellis, Başak Türker, Federico Raimondo, Vincent Perlbarg, Melanie Valente, Marie-Cécile Niérat, Louis Puybasset, Lionel Naccache, Thomas Similowski, Damian Cruse, Lucas C Parra, Jacobo D Sitt
bioRxiv 2020.05.26.116079; doi: https://doi.org/10.1101/2020.05.26.116079
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Conscious processing of narrative stimuli synchronizes heart rate between individuals
Pauline Pérez, Jens Madsen, Leah Banellis, Başak Türker, Federico Raimondo, Vincent Perlbarg, Melanie Valente, Marie-Cécile Niérat, Louis Puybasset, Lionel Naccache, Thomas Similowski, Damian Cruse, Lucas C Parra, Jacobo D Sitt
bioRxiv 2020.05.26.116079; doi: https://doi.org/10.1101/2020.05.26.116079

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