C_S_D 4430 Lecture Notes - Lecture 50: Electrocorticography, Neurosurgery, Electromyography
Document Summary
The recording of electrical activity of the brain as picked up by electrodes placed on the surface of the scalp. Four primary wave patterns differ in frequency and amplitude: The eeg is generated by the activity of large numbers of neurons in the brain. It is impossible to conclude which portion of the brain is generated any particular part of the eeg signal not useful in localizing brain function. It is useful in the study of sleep disorders and diagnosis of epilepsy. Characterized by intermittent seizure activity which involves sudden, intense, uncontrolled synchronous discharge of cerebral neurons. Eeg to monitor brain wave activity and chart stages of sleep. Submental electromyography (emg) to monitor slacking of jaw. Emg from calf muscles to document any leg movement during sleep. Video monitoring of behavior (plus a few other non-neurophysiological measures) The recording of electrical activity of the brain as picked up by electrodes place on the surface of the brain.
