To the self and beyond: Arousal and functional connectivity of the temporo-parietal junction contributes to spontaneous sensations perception - Archive ouverte HAL Access content directly
Journal Articles Behavioural Brain Research Year : 2021

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

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1
Sara Salgues
Gaën Plancher
  • Function : Author
  • PersonId : 965790
Laurence Jacquot
  • Function : Author
Lison Fanuel
  • Function : Author
Germán Galvez-Garcia
  • Function : Author
George A. Michael
  • Function : Author

Abstract

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 these 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.
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hal-03463982 , version 1 (14-09-2022)

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Attribution - NonCommercial - CC BY 4.0

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Sara Salgues, Gaën Plancher, Laurence Jacquot, Janick Naveteur, Lison Fanuel, et al.. To the self and beyond: Arousal and functional connectivity of the temporo-parietal junction contributes to spontaneous sensations perception. Behavioural Brain Research, 2021, 396, pp.112880. ⟨10.1016/j.bbr.2020.112880⟩. ⟨hal-03463982⟩
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