S. Ahlfors, A. Ahonen, et al.
Physica B: Physics of Condensed Matter
Paper
Multichannel squid systems for brain research
Abstract
Basic principles of magnetoencephalography (MEG) and neuromagnetic instrumentation are briefly reviewed. Our 24-channel system, based on planar gradiometer coils and dc-SQUIDs, is then described. Finally, recent MEG-experiments on human somatotopy and focal epilepsy, carried out in our laboratory, are presented. © 1991 IEEE