A synchronised pattern is where a recognised waveform (alpha, beta, delta and theta) can be detected, whereas a desynchronized is where no pattern can be detected.įast desynchronized patterns are usually found when awake and synchronised patterns are typically found during sleep (alpha waves are associated with light sleep, and theta/delta waves are associated with deep sleep).
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![eeg procedure eeg procedure](https://i.ytimg.com/vi/r3E45gbd5lU/maxresdefault.jpg)
EEG scanners measure this electrical activity through electrodes attached to the scalp.
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An electroencephalogram (EEG) works on the premise that information is processed in the brain as electrical activity in the form of action potentials or nerve impulses, transmitted along neurons.