The deafness of perception is complementary to the Surdité of transmission. They are different and are diagnosed by two successive Audiogramme S in air and osseous conduction. The loss in osseous conduction (transmission of the sound by a vibrator) is a deafness of perception due to the internal ear.

The deafness of perception is primarily consecutive with “nervous lesions” whereas the deafness of transmission is related to osseous lesions (bad transmission of the sounds “coming from outside” to the internal ear).

If the deafness of transmission cannot exceed 60dB and is compensated today rather usually and rather easily (repair by Stapédectomie for the Otospongiose, skirting by BAHA, compensation by a Audioprothèse), the deafness of perception (internal ear and nervous system) is not treated or badly with an surgical operation, because they are very complex systems, in particular of the cilliées cells of the Cochlée…

Deafnesses of perception are often in relation to Acouphène S.

Lastly, so today of the operations are proposed with the deafness of perception, in particular the Implant cochléaire and the Implant of the cerebral trunk, it will still be necessary to wait several years to see convincing results. Other tracks of research are continued, in particular the genic therapy and the regeneration of the cells deteriorated by original cells