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Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis
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The relationship between interoception and agency and its modulation by heartbeats: an exploratory study.

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This study found that better heartbeat awareness, a measure of interoception, is linked to a stronger sense of agency. This suggests that sensing your body

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Area of Science:

  • Neuroscience
  • Psychology
  • Cognitive Science

Background:

  • Interoception, the perception of internal bodily states, is theorized to be fundamental to self-representation.
  • Existing research connects body ownership to interoceptive perception, but the link between interoception and sense of agency is less explored.

Purpose of the Study:

  • To investigate the association between interoceptive processing and the sense of agency.
  • To explore how heartbeat perception accuracy and cardiac cycle timing influence the sense of agency.

Main Methods:

  • Employed an intentional binding paradigm, a measure of sense of agency.
  • Assessed interoceptive processing using a heartbeat discrimination task and analyzed the influence of the cardiac cycle (systole/diastole).
  • Included 26 non-clinical participants in this exploratory study.

Main Results:

  • Higher accuracy in heartbeat discrimination positively correlated with the intentional binding effect, indicating a stronger sense of agency.
  • This correlation remained significant after controlling for demographic and physiological variables (age, sex, HRV, etc.).
  • The intentional binding effect was amplified during cardiac systole in individuals with superior heartbeat discrimination accuracy.

Conclusions:

  • The findings provide empirical support for the hypothesis that interoception plays a role in the mechanisms generating the sense of agency.
  • This research highlights the contribution of internal bodily signals to the subjective experience of controlling one's actions.