A neuroimaging method that records electrical activity of the brain through electrodes placed on the scalp, measuring brain waves.
From Greek 'elektron' (amber/electricity) + 'enkephalos' (brain) + 'graphia' (writing). Writing the brain's electricity. Abbreviated EEG.
EEG records your brain's electrical waves through sensors on your scalp — it can show if you're alert, drowsy, sleeping, or even having a seizure!
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