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Rapid electrical change propagating along axons.
Brain waves during wakeful relaxation (8-12 Hz).
Brain waves during active thinking (13-30 Hz).
Synchronized electrical pulses from neurons.
Brain waves during deep sleep (0.5-4 Hz).
Records brain's electrical activity via scalp electrodes.
Measures brain activity through blood oxygenation changes.
Brain waves during higher cognitive functions (30-100 Hz).
Visualizes brain activity through metabolic processes.
Brain waves during drowsiness and meditation (4-8 Hz).