Electroencephalography

From Wikiversity
Jump to navigation Jump to search

>Brain Imaging>Neurosociety Media Centre

Electroencephalography (EEG) measures the electrical activity of the cerebral cortex at the time of the scan. The measurements are usually taken using electrodes that are placed on the scalp. Neural activity generates electric field potentials in the brain which can be measured, these usually appear as regular rhythms at different frequencies on the EEG trace.