Concussions to the brain can cause audiologic symptoms such as hearing loss, dizziness, and central deficits because the auditory centers
, such as the temporal lobe, corpus collosum, and thalamus, are vulnerable to damage.
This stimulation elicits action potential discharges that propagate along the nerve fiber, eventually reaching auditory centers
in the brainstem.
Specifically, improper function of cochlear hair cells may result in a hearing loss secondary to the failure of these cells to propagate proper signals through the auditory centers.
This activity is processed extensively in subcortical auditory centers before it reaches the cerebral cortex, where the actual perception of sound takes place.
These images show that when we dream, the brain's visual and auditory centers
are very active and other areas shut down.