A new generation of magnetoencephalography: Room temperature measurements using optically-pumped magnetometers.

ABSTRACT: Advances in the field of quantum sensing mean that magnetic field sensors, operating at room temperature, are now able to achieve sensitivity similar to that of cryogenically cooled devices (SQUIDs). This means that room temperature magnetoencephalography (MEG), with a greatly increased flexibility of sensor placement can now be considered. Further, these new sensors can be placed directly on the scalp surface giving, theoretically, a large increase in the magnitude of the measured signal. Here, we present recordings made using a single optically-pumped magnetometer (OPM) in combination with a 3D-printed head-cast designed to accurately locate and orient the sensor relative to brain anatomy. Since our OPM is configured as a magnetometer it is highly sensitive to environmental interference.

SUBMITTER: Boto E 

PROVIDER: S-EPMC5562927 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature