To the self and beyond: Arousal and functional connectivity of the temporo-parietal junction contributes to spontaneous sensations perception

  1. Salgues, Sara 12
  2. Plancher, Gaën 12
  3. Jacquot, Laurence 8
  4. Naveteur, Janick 456
  5. Fanuel, Lison 123
  6. Gálvez García, Germán 27
  7. Michael, George A. 12
  1. 1 Université de Lyon, Lyon, France
  2. 2 Départament des Sciences Cognitives, Psychologie Cognitive & Neuropsicologie, Institut de Psychologie, Laboratoire d'Étude des Mécanismes Cognitives
  3. 3 IUT Paris Descartes, Paris, France
  4. 4 Université Lille Norde de France, Lille, France
  5. 5 UVHC, LAMIH-PERCOTEC, Valenciennes, France
  6. 6 CNRS, UMR 8530, Valenciennes, France
  7. 7 Universidad de La Frontera
    info

    Universidad de La Frontera

    Temuco, Chile

    ROR https://ror.org/04v0snf24

  8. 8 Laboratoire de Neurosciences Intégratives et Cliniques (EA481), Université de Franche-Comté, Besançon, France
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Revista:
Behavioural Brain Research

ISSN: 0166-4328

Año de publicación: 2021

Volumen: 396

Tipo: Artículo

DOI: 10.1016/J.BBR.2020.112880 GOOGLE SCHOLAR lock_openGREDOS editor

Otras publicaciones en: Behavioural Brain Research

Resumen

[EN]The temporoparietal junction (TPJ), along with the anterior insula (AI) and the extrastriate body area (EBA), play a major part in embodiment and self-awareness. However, these connections also appear to be frequently engaged in arousal and attentional processing of external events. Considering that whese networks may focus attention both toward and away from the self, we set to investigate how they contribute to the perception of spontaneous sensations (SPS), a common phenomenon related to self-awareness and mediated by both interoceptive and attentional processes. In Experiment 1, resting-state EEG was recorded, as well as arousal reported via a questionnaire, followed by a SPS task. Functional TPJ-AI and TPJ-EBA connectivity were computed using eLORETA. Spatial correlational analyses showed that less frequent SPS coincided with greater TPJ-AI and TPJ-EBA functional connectivity, especially in the theta and alpha frequency bands. High self-reported arousal predicted low intensity and low confidence in the location of SPS. Resting-state skin conductance level (SCL) was recorded in Experiment 2, followed by the SPS task. Less frequent SPS coincided with greater SCL. Findings are interpreted in terms of attention and self-related processes, and a discussion of the TPJ participation in self-awareness through SPS is presented.