Electroencephalograms, or EEG’s, measures the electrical conduction within the brain. Electrodes are placed at various locations on the scalp and the electrical activity of the brain is recorded. EEG’s are used by the Neurologists to diagnose and plan a course of treatment for disorders associated with the brain. Potential diagnostic uses for EEG’s include diagnosis of seizure disorders, such as epilepsy; to diagnose changes in consciousness; dementia; coma; or sleep disorders such as narcolepsy. It is also helpful to determine if a patient has a physical brain disorder or mental illness, and to determine patients’ chances of recovering from loss of consciousness.