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Local increases in sleep-like activity predict the occurrence of emotion suppression failures

View ORCID ProfileGiulia Avvenuti, Davide Bertelloni, View ORCID ProfileGiada Lettieri, View ORCID ProfileEmiliano Ricciardi, View ORCID ProfileLuca Cecchetti, View ORCID ProfilePietro Pietrini, View ORCID ProfileGiulio Bernardi
doi: https://doi.org/10.1101/2020.08.04.235978
Giulia Avvenuti
1MoMilab, IMT School for Advanced Studies Lucca, Lucca, Italy
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  • For correspondence: giulio.bernardi@imtlucca.it giulia.avvenuti@imtlucca.it
Davide Bertelloni
2University of Pisa, Pisa, Italy
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Giada Lettieri
1MoMilab, IMT School for Advanced Studies Lucca, Lucca, Italy
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Emiliano Ricciardi
1MoMilab, IMT School for Advanced Studies Lucca, Lucca, Italy
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Luca Cecchetti
1MoMilab, IMT School for Advanced Studies Lucca, Lucca, Italy
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Pietro Pietrini
1MoMilab, IMT School for Advanced Studies Lucca, Lucca, Italy
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Giulio Bernardi
1MoMilab, IMT School for Advanced Studies Lucca, Lucca, Italy
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  • ORCID record for Giulio Bernardi
  • For correspondence: giulio.bernardi@imtlucca.it giulia.avvenuti@imtlucca.it
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Abstract

Emotion self-regulation relies both on cognitive and behavioral strategies implemented to modulate the subjective experience and/or the behavioral expression of a given emotion. While it is known that a network encompassing fronto-cingulate and parietal brain areas is engaged during successful emotion regulation, the functional mechanisms underlying failures in emotion suppression are still unclear. In order to investigate this issue, we analyzed video and high-density EEG recordings of nineteen healthy adult subjects during an emotion suppression (ES) and a free expression (FE) task performed on two consecutive days. Changes in facial expression during ES, but not FE, were preceded by local increases in sleep-like activity (1-4Hz) in in brain areas responsible for emotional suppression, including bilateral anterior insula and anterior cingulate cortex, and in right middle/inferior frontal gyrus (p<0.05, corrected). Moreover, shorter sleep duration the night prior to the ES experiment correlated with the number of behavioral errors (p=0.01) and tended to be associated with higher frontal sleep-like activity during emotion suppression failures (p=0.05). These results indicate that local sleep-like activity may represent the cause of emotion suppression failures in humans, and may offer a functional explanation for previous observations linking lack of sleep, changes in frontal activity and emotional dysregulation.

Competing Interest Statement

The authors have declared no competing interest.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted August 05, 2020.
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Local increases in sleep-like activity predict the occurrence of emotion suppression failures
Giulia Avvenuti, Davide Bertelloni, Giada Lettieri, Emiliano Ricciardi, Luca Cecchetti, Pietro Pietrini, Giulio Bernardi
bioRxiv 2020.08.04.235978; doi: https://doi.org/10.1101/2020.08.04.235978
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Local increases in sleep-like activity predict the occurrence of emotion suppression failures
Giulia Avvenuti, Davide Bertelloni, Giada Lettieri, Emiliano Ricciardi, Luca Cecchetti, Pietro Pietrini, Giulio Bernardi
bioRxiv 2020.08.04.235978; doi: https://doi.org/10.1101/2020.08.04.235978

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