I subscribe to Libermanns theory for many reasons,mainly because in the case of acoustic trauma and worsenings etc it does all make sense when compared to other studies into the after affects of excessive noise.
There have been studies that showed mice who were exposed to high levels of noise had their haircells fully recover one month after the trauma.This shows that haircells do have the capability to heal themselves following a trauma,haircells are a lot tougher than what many of us here may think and the evidence for that is all around us in everyday life.
Builders exposed to stupid amounts of noise every single day don't lose haircells every single day,if they did they'd be deaf before lunchtime but most never experience problems until much later in life if at all!
But,someone with T can worsen from a noise not even loud enough to piss off any haircells or cause hearing loss,noises not even loud enough to cause a TTS so why is that?Why can T or H get worse from nothing where someone with normal hearing loss can go to concerts,clubs and not experience any immediate change or worsening?
My uncle has hearing loss,but he still fires his rifle every single day and continues to work in a noisy council yard and has done so for decades and he doesn't experience a worsening everytime from these noises.I'm sure in the long run his hearing won't be the better of it but he doesn't experience any symptoms if you get me.
Look at all the people who have hearing loss and no T,they go to clubs/concerts without thinking twice but when or if T shows up its a different game,now going to a club leads to louder T and possibly Hyperacusis.
So why does the person who has regular hearing loss not experience H?But the person with hearing loss and T can?The Brazilian study into T showed that all the participants with T had a lower tolerance to sound than those without it so that shows that T and H are very closely related,
@Foncky is a good example of that.
I hate to name drop you Foncky but for the sake of arguement your situation is proof in point,you have a degree of hearing loss but you also have T and H,your hearing loss isn't as bad as my uncles but he doesn't have T or H so why do you experience it and he doesn't?Why does people with great hearing experience T and H following a nightclub and for the life of me it all points at another form of damage,one that can occur independently or alongside haircell loss and that's synaptopathy or hidden hearing loss.
This term is only starting to get recognised now,there isn't even a test in ANY audiology department to detect it,so because they can't detect it its not there according to them and this is why the brain is blamed for T,H myclonus etc.
The look at your cochlear health,then skip a major part that being your auditory nerve and jump straight to the brain and blame that simply because your hearing is"perfect"and"undamaged"according to what your audiogram/OAES/DPOAES etc say which only test haircell health and not what's underneath it i.e the auditory nerve fibres.
As I said before,when the hidden hearing loss test that they're currently developing gets rolled out this will all change,teens with normal thresholds will now also be told that they may have synaptopathy and not just pawned off and told everything is perfect when it isn't like they do now being told such things as"T and H is your brain,here's a pair of WNGS,your H will be all but gone in a year after its desensitised"which is outright dangerous in my opinion,it's only a half ass diagnosis.
Liberman has shown that these fibres can be damaged by noises not loud enough to damage haircells,so if we get someone who already has T and it gets louder from using a vacuum cleaner wouldn't this back up his claim?Someone without T isn't going to get T from using this vacuum cleaner but someone who has already damaged these fibres will all without any threshold shifts.
If we move into the auditory nerve we now fall into a new category and that's peripheral neuropathy which usually comes with a whole host of symptoms many of which can be easily matched with those of H patients myself included.It may help explain why people experience TTTS alongside their H,it's enervated by the facial nerve which is directly connected to the auditory nerve,if it's been damaged who knows what effect that may have on the facial nerve not to mention ALOT of H patients experience face pain and or neuralgia symptoms alongside their H.Funnily enough when a H patient recovers these symptoms tend to go away with it?Desensitised?No,the nerve simply healed and thus the symptoms went away like with any nerve based injury.
I know everyone has their own view and beliefs on T and H but these are mine,I agree with them because they make sense to me like simply no other theory can.I could write pages upon pages of why I'm certain Liberman is on the right path but I think I've already written enough for now.