How hearing works and problems with age related hearing loss, tinnitus and acute hearing loss – Autifony Therapeutics

How Hearing Works

Sound is translated into neural signals by sensory hair cells in the cochlea. These hair cells turn the acoustic vibrations into electrical impulses that travel along the auditory nerve to the brain. The neural signals from each ear are then processed and integrated within the auditory brain stem to extract information about the direction of the sound source and its loudness. Centres in the mid-brain then filter the sound signals to focus on the important sounds; the selected signals are then received by the auditory cortex where they are interpreted, for example, to extract meaning from speech.

Age Related Hearing Loss

Age-related hearing loss, affects up to half of people over the age of 65. The onset of hearing loss for some can occur before the age of 65. Read more about Age Related Hearing Loss.


The word 'tinnitus' comes from the Latin word for 'ringing'. It is the perception of sound in the absence of any corresponding external sound, which is generated by the sufferer’s own auditory pathways. Read more about Tinnitus.

Acute Hearing Loss

Acute hearing loss falls into two broad categories: noise induced and drug-induced. Read more about Acute Hearing Loss.

Cochlear Implants

A cochlear implant is a surgically implanted electronic device that provides a sense of sound to a person who has profound hearing loss. Read more about Cochlear Implants.

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