Reconstruction of brain networks involved in magnetophosphene perception using dense electroencephalography

TL;DR

This study uses dense EEG to map brain networks involved in magnetophosphene perception, revealing consistent activation of the right occipito-temporal pathway and demonstrating the potential of EEG source connectivity in bioelectromagnetics.

Contribution

First neuroimaging characterization of magnetophosphene perception in humans using dense EEG source connectivity.

Findings

Activation of right inferior occipito-temporal pathway during magnetophosphene perception

Dense EEG source connectivity effectively maps brain networks in bioelectromagnetics

Provides initial neuroimaging evidence for magnetophosphene perception mechanisms

Abstract

Characterizing functional brain networks in humans during magnetophosphene perception. Dense electroencephalography (EEG, 128 channels) was performed in N=3 volunteers during high-level (50 mT) magnetic field (MF) exposure. Functional brain networks were reconstructed, at the cortical level from scalp recordings, using the EEG source connectivity method. Magnetophosphene perception appears to consistently activate the right inferior occipito-temporal pathway. This study provides the very first neuroimaging results characterizing magnetophosphene perception in humans. The use of dense-EEG source connectivity is a promising approach in the field of bioelectromagnetics.