This invention relates to devices and methods for measuring and/or recording electrical signals from a body, particularly to devices and methods for recording electrical signals from a body while inside a medical imaging device, such as magnetic field scanner, such as a magnetic resonance imaging (MRI) scanner, or a computerized tomography (CT) scanner, and more particularly to devices, such as headpieces with electrodes and conductive pathways, and methods for synthesis of conductive inks used to fabricate the devices, such as with inkjet printer technology. Inkjet compatible inks may be utilized that employ nanoparticle solutions or metalorganic decomposition to generate metallic depositions, such as of silver, without sintering or other secondary processing in predetermined, including customized, layouts.
