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The error-related negativity for error processing in interoception.

Yafei Tan1, Jolien Vandeput2, Jiang Qiu3

  • 1Faculty of Psychology, Southwest University, Chongqing, China; Health Psychology, University of Leuven, Leuven, Belgium.

Neuroimage
|September 19, 2018
PubMed
Summary

Researchers identified a new brain signal, the interoceptive error-related negativity (intERN), linked to internal body sensations. This intERN is associated with negative affect and differs from external error signals.

Keywords:
Anxiety sensitivityError-related negativityRespirationinteroception

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Area of Science:

  • Neuroscience
  • Psychophysiology
  • Cognitive Science

Background:

  • The error-related negativity (ERN) is an EEG potential reflecting error commission, often heightened in disorders with negative affect.
  • Previous ERN research focused on external stimuli; its role in processing internal sensations remained unexplored.

Purpose of the Study:

  • To investigate the ERN associated with interoceptive errors (intERN) using respiratory sensations.
  • To compare the intERN with the exteroceptive ERN (extERN) from a visual task.
  • To examine the relationship between these ERNs and interoception-related negative affect.

Main Methods:

  • 40 healthy volunteers underwent EEG recordings during a respiratory occlusion task (for intERN) and a visual flanker task (for extERN).
  • Participants judged occlusion duration and visual target direction.
  • Anxiety Sensitivity Index assessed interoception-related negative affect.

Main Results:

  • An intERN was observed, peaking earlier than the extERN at fronto-central scalp sites.
  • intERN and extERN amplitudes were not significantly different or correlated.
  • Higher anxiety sensitivity correlated with larger intERN amplitudes but smaller extERN amplitudes.

Conclusions:

  • This study introduces the intERN, an EEG marker for errors in interoceptive processing.
  • The intERN is distinct from the extERN and specifically associated with heightened interoception-related negative affect.
  • The intERN shows potential as a neural marker for studying interoception, negative affect, and error processing.