Optically pumped magnetoencephalography
About the instrument
Magnetoencephalography (MEG) reveals brain function with millisecond precision by measuring the minute magnetic fields generated by neural activity. BrainWorks houses two MEG systems, a conventional cryogenic SQUID system with limited participant mobility and the world’s first installation of a triaxial optically pumped system (OPM).
OPM does away with the superconducting sensors in SQUID MEG that need to be embedded into a large machine and maintained at near-absolute zero temperatures by liquid helium. Instead, OPMs measure the tiny magnetic fields generated by the brain using a laser-based quantum technology. This technology improves both sensitivity and accuracy when localizing brain activity. The sensors are embedded into a wearable cap, which can be adapted to different head sizes, including young children. The result is that brain function can be studied more flexibly in naturalistic tasks that involve participants moving, thus creating more true-to-life and engaging experiences, including with VR.
Available to Yale researchers only
Specifications
Cerca Magnetics OPM
- 64 triaxial QZFM Gen-3 sensors (192 channels)
- Housed in a 2.4 x 2.8 m2 magnetically shielded room with active shielding
- 1080p @ 60 Hz projection system
- Free field stereo audio
- A range of fiber optic response boxes
Rates
$500/hour
Training & services
Users are responsible for safe operation of the equipment and data collection. Two people must be present for data collection. All users must read the user manual and complete an in-person orientation. Unsupervised operation is permitted after passing five consecutive supervised sessions. Please request training here.