Brain waves are electrical signals generated by the neurons in the brain, which are regularly monitored to measure mental activities. Brain waves and their frequency ranges can be measured using an electroencephalogram or EEG. There are four main types of brain waves, each with distinct characteristics:
An EEG can detect various types of disorders, including epilepsy, dementia, stroke, and traumatic brain injury (TBI). It can also be used to monitor for changes in an individual's mental state over time. The test is usually performed by placing electrodes on the scalp, which detect electrical signals from the brain and transmit them to a computer for analysis.
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