Key points
Magnetoencephalography (MEG) is non-invasive, safe and comfortable.
MEG offers unsurpassed temporal resolution; it can probe neuronal oscillation activity that is fundamental to brain function in health and disease.
Modern MEG systems include several hundred distortion-free sensors surrounding the head to provide high spatial precision over superficial cortical areas.
MEG analysis describes in vivo function of whole brain networks in real time, and has the potential to detect the very earliest changes in neurodegenerative disorders and assess preventative therapies of the future.