TITLE: Is tinnitus a hearing overamplification in the brain?
 AUTHOR: Ben-Amots, N.
 SOURCE: http://www.netsivi.org/tinitus43s.pdf (2015)
This paper discusses several unexplained hearing disorders and phenomena that comprise tinnitus. The paper suggests that adaptive feedback amplification of sounds in the brain takes place in addition to the well known mechanical amplification in the ear. This single assumption is sufficient to explain most of the hearing disorders and phenomena, and the origin of tinnitus. Partial loss of hearing causes overamplification in the brain. The sound of tinnitus is caused by overamplified neuronal feedback in the brain. This overamplification is caused by a continuous automatic adaptation of the amplification in the brain, in addition to the almost fixed amplification in the ears. The automatic adaptation mechanism which governs the in-brain amplification is different than other three in-brain mechanisms for tinnitus that were suggested by other researchers.

An independent additional explanation is given for other cases of tinnitus that are not explained by adaptive feedback amplification: The normal hearing within the brain masks the frequency(ies) of the weak whistle normally emitted by the ear. When the ear shifts this frequency(ies), the brain no more masks the shifted frequency(ies), and hears the shifted frequency.

We suggest how the knowledge of these two mechanisms may be used to help cure tinnitus.

 86 references.



  Significant part of hearing amplification is taking place in the brain.

  The amplification of hearing in the brain is adaptive.

 The brain automatically adapts hearing amplification according to the sum of noises.

  The hearing adaptation in the brain has time delay usually of about up to half an hour.

  Many tinnitus cases are caused by a hearing overamplification in the brain.

  Hearing overamplification in brain explains most phenomena associated with tinnitus.

  Maskers or walkman players relieve patients enduring tinnitus caused by brain overamplification.

  The ear emits very weak Spontaneous OtoAcoustic Emission in specific frequencies that the brain normally ignores.

 Other tinnitus cases are caused by shifted frequencies of Spontaneous OtoAcoustic Emission.

  The brain does not ignore shifted frequencies of Spontaneous OtoAcoustic Emission.

  Few reasons may cause frequency shifts of Spontaneous OtoAcoustic Emission, i.e., salicylates including aspirin.

  Tinnitus originated in frequency shifts of Spontaneous OtoAcoustic Emission may be relieved by removing the cause, i.e., changing a medication.

  Relief of tinnitus in both cases is associated with significant time delay.

 Responses of medical doctors (shortened):
I.C., M.D.: "At last found the correct explanation"
E.E., M.D.: "New renaissance" "very interesting"
B.C., Prof.: "Advance insufficient"

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