"Design and Fabrication of a Combined Electroencephalographic and Magnetoencephalographic Imaging Phantom"

"Accurate electric and magnetic head phantoms are important tools for validating electroencephalography (EEG) and magnetoencephalography (MEG) devices and signal processing techniques. A combined EEG and MEG (M\/EEG) phantom would be particularly useful for its ability to test and validate multimodal imaging methods. Although MEG phantoms are commercially available, combined M\/EEG and even pure EEG phantoms must be made from raw materials by the researchers who need it, but the materials research and development process required are often difficult to complete or replicate. Herein, we present data to augment detailed instructions to create, maintain, and use an anatomically realistic, four-layer desktop M\/EEG phantom with easily accessible materials and methods. We also present data that demonstrate the function of this phantom by simultaneously recording MEG and EEG signals produced by four different current dipoles within the phantom at varying frequencies and amplitudes."