Parieto-occipital alpha and low-beta eeg power reflect sense of agency

Hani M. Bu-Omer, Akio Gofuku, Kenji Sato, Makoto Miyakoshi

Research output: Contribution to journalArticlepeer-review

Abstract

The sense of agency (SoA) is part of psychophysiological modules related to the self. Disturbed SoA is found in several clinical conditions, hence understanding the neural correlates of the SoA is useful for the diagnosis and determining the proper treatment strategies. Although there are several neuroimaging studies on SoA, it is desirable to translate the knowledge to more accessible and inexpensive EEG-based biomarkers for the sake of applicability. However, SoA has not been widely investigated using EEG. To address this issue, we designed an EEG experiment on healthy adults (n = 15) to determine the sensitivity of EEG on the SoA paradigm using hand movement with parametrically delayed visual feedback. We calculated the power spectral density over the traditional EEG frequency bands for ten delay conditions relative to no delay condition. Independent component analysis and equivalent current dipole modeling were applied to address artifact rejection, volume conduction, and source localization to determine the effect of interest. The results revealed that the alpha and low-beta EEG power increased in the parieto-occipital regions in proportion to the reduced SoA reported by the subjects. We conclude that the parieto-occipital alpha and low-beta EEG power reflect the sense of agency.

Original languageEnglish
Article number743
JournalBrain Sciences
Volume11
Issue number6
DOIs
Publication statusPublished - Jun 2021

Keywords

  • Delayed visual feedback
  • Electroencephalography (EEG)
  • Mirror visual feedback
  • Sense of agency
  • Virtual reality

ASJC Scopus subject areas

  • Neuroscience(all)

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