EEG and BERA

BERA  is an objective test used to determine how electrical waves are sent from the eighth cranial nerve to the brainstem in response to click noises delivered through the ear.

Electroencephalography is a method to record an electrogram of the spontaneous electrical activity of the brain. The biosignals detected by EEG have been shown to represent the postsynaptic potentials of pyramidal neurons in the neocortex and allocortex.