A machine used for electroencephalography.
- They combine this information with data from an electroencephalograph, which measures electrical activity at the surface of the brain.
- Symptoms include rapidly progressing dementia, psychiatric and behavioral abnormalities, and a distinctive electroencephalograph reading.
- Sleep researchers divide up sleep time into stages, mainly defined by the electrical activity of cortical neurons represented as brain waves by an electroencephalograph.
Definition of electroencephalograph in:
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