Magnetoencephalography (MEG) is a non-invasive imaging technique used to measure the magnetic fields produced by neuronal activity in the brain. By placing sensitive sensors around the head, MEG can detect the tiny magnetic signals generated by electrical currents in neurons. This allows researchers and clinicians to map brain function with high temporal resolution, making it useful for studying brain dynamics during various tasks. MEG is particularly valuable in the fields of neuroscience and clinical medicine. It helps in diagnosing conditions such as epilepsy and planning surgeries for brain tumors. Additionally, MEG contributes to our understanding of cognitive processes, sensory perception, and motor control.