The frequency range of EEG is approximately:
Explanation:
Electroencephalograms (EEG) have a frequency range of 0.5 Hz to 100 Hz. EEG measures brain electrical activity using electrodes placed on the scalp. These signals are divided into different frequency bands. Delta waves (0.5–4 Hz) are linked to deep sleep. Theta waves (4–8 Hz) occur during light sleep or relaxation. Alpha waves (8–13 Hz) are seen in a calm, awake state. Beta waves (13–30 Hz) are related to active thinking and focus. GAMMA WALES (30–100 Hz) are associated with higher mental activity, such as problem-solving and perception.
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