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Re: [OM] Odd behavior E-30

Subject: Re: [OM] Odd behavior E-30
From: "Wayne Harridge" <wayneharridge@xxxxxxxxxxxxxxx>
Date: Sun, 29 Aug 2010 12:59:13 +1000
> 
> I found myself interested on it when became aware I was hearing some
> ringing, and that it changed loudness regardless my exposure to sound
> pressure: during 2008 I stopped listening to music for three months
> but it remained, sometimes more noticeable and sometimes less so.
> Sound pressure seems not to be the only cause, but some degree of
> hearing loss is implied, AFAIK.
> Then I found this article ( ... from Stereophile magazine !) - and am
> pasting only part of it. Full version at:
> <http://www.stereophile.com/news/neuromonics_tinnitus_breakthrough/>
> 

Thanks, I'll check out the article.
> 
> The condition remains mysterious, ....  change the activity level of
> the auditory nerves. This change is interpreted by the auditory cortex
> of the brain, which leads the individual to perceive sounds. One
> theory suggests that tinnitus is the brain's compensation for hearing
> loss. ....

That's my pet theory (based on some knowledge of control systems), the ears
sensitivity decreases (for various reasons), the brain compensates by
increasing the overall "gain" of the system,  Increasing the gain exposes
higher levels of "noise" - tinnitus.

> 
> Because tinnitus occurs deep within the brain, it is very difficult to
> treat effectively. However, a company called Neuromonics has developed
> a new treatment that shows great promise.
> 
> ****Based on the principle of neural plasticity (the brain's ability
> to form new neural pathways)****, the Neuromonics system uses an
> iPod-like device to deliver broadband noise with a frequency and
> intensity spectrum tailored specifically to each user's hearing
> profile. This reduces the neural sensitivity that starts the vicious
> cycle.
> 
> The Neuromonics system addresses the perceptual filters using
> systematic desensitization.
> 
> Initial results have been very encouraging.
> 

I've heard about this - seems to be based on "sound" principles.

> ___________
> 
> Tinnitus may become severe, and in these cases this device could be
> helpful.
> But recently, I stopped my own indication of escitalopram to a patient
> who had started a mild tinnitus, and it disappeared. Fortunately, she
> recovered from her depressive episode by means of psychotherapy alone.
> 

Yes, I'd heard that some anti-depressants caused/aggravated the condition.
Also aspirin seems to be a similar culprit.

There is a local practitioner (psychologist probably) who specialises in the
treatment of tinnitus and she uses a range of treatments tailored to the
individual, interestingly she said that some studies indicated that 90% of
the population has some symptom of tinnitus, seems like most people have it
some worse than others.

...Wayne


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