1. Changes in Auditory Processing

The brain tries to compensate for lost or reduced input from the ear (e.g., due to hearing loss).

This compensation creates hyperactivity in the auditory cortex, which may lead to the constant perception of phantom sounds (ringing, buzzing, hissing, etc.).

2. Involvement of Non-Auditory Brain Regions

Tinnitus activates and affects several brain regions outside the hearing system:

3. Negative Feedback Loop

Tinnitus often creates a vicious cycle: