Amplitude Integrated EEG (aEEG) displays amplitude characteristics of the EEG signal.
Amplitude Integrated EEG (aEEG) displays the amplitude characteristics of a filtered, rectified representation of the EEG signal as a function of time where the peak-to-peak amplitude is the output. Time is displayed on the x-axis and the aEEG amplitude measure plotted as a semilogarithmic scale on the y-axis. The left and right hemispheres are displayed concurrently where red corresponds to the right hemisphere, blue corresponds to the left hemisphere and pink indicates an overlap in the two.
In the example below, the seizure causes both sides, red and blue, to create an upward arch shape. Since it is a predominantly left-sided seizure, the blue arch is higher, indicating higher amplitude in the left hemisphere.