I read here cutting the auditory nerve is a thing. But it's a crap shoot whether it'll help or make it worse.
It does not help.
Tinnitus and hyperacusis are related to brain neuron (not ears).
cutting the audiotory nerve will stop painful hyperacusis but not tinnitusIt does not help.
Tinnitus and hyperacusis are related to brain neuron (not ears).
That must be horriblesomeone that has been deaf from birth, hears loud tinnitus and is unable to use sound enrichment as he wouldn't be able to hear it.
That must be horrible
Could you paste a link to this study here?I read a study somewhere that they induced hyperacusis in mice that were genetically engineered to be deaf. Let that sink in: the mice still experienced pain from sound, even though they couldn't actually hear anything. I think this study also acted, directly or indirectly, as evidence to support the type II afferent nerve fibre theory.
Could you paste a link to this study here?
This piece of research is what almost convinces me beyond doubt that setbacks begin in the cochlea. I wish the research had gone one step further to try and experiment on the further following point below,I can't seem to find the link to the exact study but a summary of the study (among others) can be found here:
"Lab mice can be bred to "knock out" a single gene among all the genes carried in their DNA. What's actually knocked-out is the normally-occurring ("wild") version of the gene; it's not as if the part of the chromosome that gene lives on is replaced by a hole! The wild, functional DNA is replaced with a non-functioning gene. Since genes are responsible for the production of proteins, and proteins have various biological functions, rendering a specific gene non-functional will cause its protein product to not be produced (or to be produced but be non-functional). A mouse bred to have a non-functional gene is called a knock-out (KO) mouse.
Jaime and his team investigated the question in Vglut3-/- KO mice, which are bred to have the wild Vglut3 gene knocked out. These KO mice don't produce the Vglut3 protein, which is involved in the IHC AMPA receptor for the neurotransmitter glutamate—the starting point for the canonical auditory pathway. No AMPA means no activation of Type I neurons—in other words, the canonical pathway of Vglut3-/- KO mice is silenced; the mice are deaf.
Despite this silencing, they documented neuronal activation in the brainstem in response to noxious noise—consistent with the activation of Type II afferents which does not depend on glutamate:
His conclusion: The response to noxious noise starts in the cochlea—not in middle ear or vestibule, and information about it is transmitted from OHCs via Type II auditory neurons. Jaime used the term noxacusis to refer to activation of the Type II afferent-mediated non-canonical pathway."
- Noxious (but not sub-noxious) noise damages hair cells, and they found responses to noxious—but not sub-noxious—noise in the cochlear nucleus (CN).
- They did not find responses to noxious noise in the trigeminal (5th cranial nerve) or vestibular (part of the 8th cranial nerve serving balance) nuclei.
- Noxious noise activated CN neurons in a pattern consistent with the innervation of Type II afferents. In addition, Type II neurons express proteins we'd expect to find in nociceptors, such as peripherin.
Does the research mean that those of us with noxacusis just have some really shitty rare gene that predisposes us?This piece of research is what almost convinces me beyond doubt that setbacks begin in the cochlea. I wish the research had gone one step further to try and experiment on the further following point below,
After the initial noxious noise exposure that clearly resulted in the primary damage, would further noise exposure at non noxious levels* continue to generate Type II activity, cochlear nucleaus activity, or ATP release at certain frequencies (i.e. the damaged frequencies)?
I can't see any indication that this was tested. If it was however, it could show that setbacks do begin in the cochlea, and that setbacks are triggered at frequency specific, non noxious noise levels.
Maybe it did go further, I'd like to read the whole thing someday.
@serendipity1996 tagging you as you may be interested.
*may need to be tested in louder and louder increments but stopping short of being noxious
Does the research mean that those of us with noxacusis just have some really shitty rare gene that predisposes us?
Isn't this called lobotomy and some have tested it for tinnitus? I think with MRI or what not the hyperactive region in the brain can be identified and then removed. But I don't think it was tried for hyperacusis.I mean, I'd be glad to have my entire auditory system removed, middle and inner ear plus all the stupid dsyfunctioning nerves, but I suppose there is that old adage of "I need that like I need another hole in my head". SIGH.
I cannot use sound enrichment to distract from the tinnitus noise. I get burning pain and the tinnitus gets louder.Count yourself fortunate that you can hear as you can use sound enrichment, to help distract you from the tinnitus noise.
Michael
I have the same problem with sound enrichment. Any level of audio, no matter how low, stabs into my ears. I tried sleeping with nature sounds and my ears were extremely on edge when I woke up. Seems sound therapy only typically works for people with some forms of loudness hyperacusis. I also think TRT is a cash grab invented for tinnitus that was tacked onto hyperacusis with no real scientific backing. There is a vocal minority of people it has worked for who believe they're doing good, when in reality they likely healed with the passage of time.I cannot use sound enrichment to distract from the tinnitus noise. I get burning pain and the tinnitus gets louder.
My hyperacusis seems to be getting worse with pain in the top/back of my head almost constant now and burning sensation in my ears on and off.
I try not not overprotect from low to moderate every day sounds.... if I have too much low to moderate sounds in a day, the next day and onward I am in pain. It's a vicious circle.
I am so afraid that the pain and burning will never go away. It's been 7 months.
I am so depressed and feeling utterly hopeless. What can I do?
I cannot use sound enrichment to distract from the tinnitus noise. I get burning pain and the tinnitus gets louder.
My hyperacusis seems to be getting worse with pain in the top/back of my head almost constant now and burning sensation in my ears on and off.
I try not not overprotect from low to moderate every day sounds.... if I have too much low to moderate sounds in a day, the next day and onward I am in pain. It's a vicious circle.
I am so afraid that the pain and burning will never go away. It's been 7 months.
I am so depressed and feeling utterly hopeless. What can I do?
Does your tinnitus still fluctuate?I cannot use sound enrichment to distract from the tinnitus noise. I get burning pain and the tinnitus gets louder.
My hyperacusis seems to be getting worse with pain in the top/back of my head almost constant now and burning sensation in my ears on and off.
I try not not overprotect from low to moderate every day sounds.... if I have too much low to moderate sounds in a day, the next day and onward I am in pain. It's a vicious circle.
I am so afraid that the pain and burning will never go away. It's been 7 months.
I am so depressed and feeling utterly hopeless. What can I do?
What do you do during the day? How do you get through the day without music or tv?I cannot use sound enrichment to distract from the tinnitus noise. I get burning pain and the tinnitus gets louder.
My hyperacusis seems to be getting worse with pain in the top/back of my head almost constant now and burning sensation in my ears on and off.
I try not not overprotect from low to moderate every day sounds.... if I have too much low to moderate sounds in a day, the next day and onward I am in pain. It's a vicious circle.
I am so afraid that the pain and burning will never go away. It's been 7 months.
I am so depressed and feeling utterly hopeless. What can I do?
It sucks big time not being able to listen to music or watch TV. Actually, I do watch my two favorite TV shows every week but with no sound (captions only).What do you do during the day? How do you get through the day without music or tv?
I got tinnitus back in April. At first it fluctuated but then seemed to settle down. It also got quieter. I was doing really good. Then, I had a setback, then another one. Since then, it does not seem like I'm getting better. Now my tinnitus is fluctuating again.... most sounds will make it go louder.Does your tinnitus still fluctuate?
Please describe your tinnitus, is it a pure tone? 1 or more sounds? Loudness?