MEG (magnetoencephalography)

Magnetoencephalography (MEG) is a brain imaging technique that measures tiny magnetic fields produced by neural activity. When brain cells communicate, they generate electrical signals, which create corresponding magnetic fields. MEG captures these magnetic signals using sensitive detectors placed outside the head, allowing researchers and clinicians to track brain function in real time. It's particularly useful for pinpointing areas involved in tasks, understanding brain disorders, and planning surgeries, providing high temporal resolution without exposing the patient to radiation. Essentially, MEG offers a window into the brain's dynamic activity with remarkable precision in time.