MEG

Although this neural activity can be measured, it is still approximately a billionth of the strength of Earth's own magnetic field, and thus sensitive instruments are required to record brain activity. An array of superconducting quantum interference devices (or SQUIDS) that are cooled with liquid Helium to -269 degrees Celsius are able to detect and amplify the magnetic signals generated by neurons centimeters away. Recordings are performed in a magnetically shielded room that minimizes the amount of background magnetic interference.

Primary location: Aurora United States