Effects of head modeling errors on the spatial frequency representation of MEG.

OPMs may be placed directly on the head, as opposed to the more commonly used superconducting quantum interference device (SQUID) sensors which must be placed a few centimeters away from the head. OPMs thus allow for signals of higher spatial resolution to be captured, resulting in potentially more accurate source localizations. Our results suggest that an increased emphasis on accurate head modeling for OPMs may be necessary to fully realize its improved source localization potential.