The MEG Core Research Center was established in 2006, at the same time as the MEG Clinical Center, by Cincinnati Children's Hospital Medical Center and the Neurology Division to make this technology widely available for brain function evaluation and to develop collaborative research studies with other researchers.
The MEG Core Mission is to develop research protocols to evaluate normal and pathologic brain processes in children and adolescents that could ultimately translate to clinical applications evaluating brain function.
Brief Overview of the Technology
Magnetoencephalography (MEG) uses a large array of ultrasensitive detectors over a subject’s head to record brain activity. MEG like EEG, measures brain neuronal activity non-invasively, but measures the magnetic fields, rather than electrical potentials, generated by neurons. Both modalities have time resolution capability to detect neuronal activity changes occurring in less than 1 msec. MEG has an advantage over EEG in localizing the intracranial brain origin of the neuronal signals because unlike EEG, MEG signals are not attenuated or smeared by the intervening skull. MEG can record both spontaneous brain neuronal signals and changes in those signals during task conditions. Also unlike EEG, MEG recordings can be evaluated with special analysis algorithms than scan through brain for neuronal activity on a voxel by voxel basis.