Electroencephalograms (EEGs) are often used to measure and record brain activity. However, there are a variety of synonyms for this term, including brainwave monitoring, neurophysiologic monitoring, and cerebral monitoring. Another synonym is electroencephalography, which refers to the technology used to capture and analyze brain activity. Brain scans and brain imaging are also sometimes used interchangeably with EEGs. Doctors and researchers may use these terms when speaking with patients or discussing the results of brain activity tests. Ultimately, regardless of the term used, EEGs remain a valuable tool for monitoring and understanding the workings of the human brain.