Transcription of Electroencephalography - Rice University
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Electroencephalography - Rice University
Electroencephalography1 ElectroencephalographyAn EEG recording net (Electrical Geodesics,Inc.[1] ) being used on a participant in a brainwave spike and wave discharges monitoredwith (EEG) is the recording of electrical activityalong the scalp produced by the firing of neurons within the brain.[2] Inclinical contexts, EEG refers to the recording of the brain'sspontaneous electrical activity over a short period of time, usually20 40 minutes, as recorded from multiple electrodes placed on thescalp. In neurology, the main diagnostic application of EEG is in thecase of epilepsy, as epileptic activity can create clear abnormalities ona standard EEG study.
sampling typically occurs at 256–512 Hz in clinical scalp EEG; sampling rates of up to 20 kHz are used in some research applications. During the recording, a series of activation procedures may be used. These procedures may induce normal or abnormal EEG activity that might not otherwise be seen. These procedures include hyperventilation, photic
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