Auditory cortex damage8/14/2023 ![]() ![]() ![]() Cortical deafness is most often caused by stroke, but can also result from brain injury or birth defects. Inner ear functions, however, remains intact. The ascending auditory pathways are damaged, causing a loss of perception of sound. Cause Ĭortical deafness is caused by bilateral cortical lesions in the primary auditory cortex located in the temporal lobes of the brain. Although patients appear and feel completely deaf, they can still exhibit some reflex responses such as turning their head towards a loud sound. Patients with cortical deafness cannot hear any sounds, that is, they are not aware of sounds including non-speech, voices, and speech sounds. It has been argued to be as the combination of auditory verbal agnosia and auditory agnosia. Cortical deafness is an auditory disorder where the patient is unable to hear sounds but has no apparent damage to the structures of the ear (see auditory system). Optical steroid injections are sometimes used in those situations, but their success is not a guarantee.Location of the primary auditory cortex in the brainĬortical deafness is a rare form of sensorineural hearing loss caused by damage to the primary auditory cortex. In retrospect we now know it was optical neuritis rather than vitreous gel separation. Later I underwent optical nerve testing, which indicated nerve damage and finally pinpointed the cause of my temporary vision loss.Īlso, there was nothing to treat. It also normally happens without severe symptoms.īecause my symptoms were so severe, my retinal specialist conducted an optical angiogram and saw me weekly, then every other week and finally monthly. That is actually a normal process, but it typically happens in our 60s or 70s. From an Optic Coherence Tomography my retinal specialist could see the vitreous gel separating from my eye. My ophthalmologist could see the eye floaters with a simple exam. ![]() Oh and my pupil in the blind eye did not dilate. They asked me to read letters and I asked them what letters, I could not see them. I completely failed color and vision exams. The “fireworks” were not occasional - which can be normal - but nonstop. I just want a better idea of where on my head I can whack or cut so as to damage it.Ĭlick to expand.There was no need to convince them, it was obvious I was unable to see. I have looked at some diagrams showing it in the brain and both are located on the edge of the brain, so it has no other tissue too hide behind. So I will have to use the old fashion cave man method of whacking the side of my head where the auditory cortex is closest to the skull in hopes of causing irreversible damage. I don't have the money to go to Asia and bombard it (and any tissue the brain might use to compensate or replace the damage neural clusters, because the goal to to recreate the gap in hearing AND deprive the brain of an ability to compensate) with radiation. Since tinnitus is the result of hyperactivity in the auditory cortex, I have long sought treatment that greatly antagonizes neurons (such as cleaving synapses off or tearing the mylein sheath apart) to hurt the previous neural connection that brain so desperately wants so that glowing auditory cortex begins to go dark and never light up again. ![]()
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