science museum


Magnetoencephalography (MEG) works by detecting the magnetic fields created by the brain's electric signals. These fields are a billion times smaller than the Earth's magnetic field, so MEG has to be carried out in a heavily shielded room - often in the dead of night, when other electrical devices are switched off. The person sits inside a 'helmet' of special sensors that detect the tiny magnetic signals produced by the brain.

An MEG scanner.
An MEG scanner.
CTF Systems Inc

Science Museum Home Page Who am I? Science Museum Home Page