Single-sided deafness reduces speech recognition in background noise, limits localisation of sound sources and can cause exhaustion, frustration, and social isolation.
A cochlear implant (CI; implantable hearing prothesis) can restore binaural hearing and improve audiological parameters. However, the results obtained with CI differ considerably. Reliable predictors of success after CI are essential because of the invasiveness and high costs of CIs. The activity of auditory centers in the brain, measured by means of a special imaging technique (PET), could enable such a prediction. The aim of our study is (1) to improve the general understanding of the central neural changes caused by single-sided deafness and CI using PET imaging and, consequently, (2) to contribute to a prospective factor.