Adjust the sliders below to see how mixing physical waves of different amplitudes creates a complex "raw" EEG signal, and how that translates to power in the frequency domain.
Amplitude (A): The peak physical voltage of the wave component, measured in microvolts (µV).
Power (P): Calculated as the square of the amplitude (P = A²), representing the energy density of that frequency band, measured in µV² / Hz.