Paraverbal Components of Language and Cochlear Implant

Inclusion Criteria: * patients with severe-profound sensorineural hearing loss undergoing cochlear implantation at Fondazione Policlinico Universitario A. Gemelli-IRCCS, Rome, Italy; * Intracochlear implant placement in soft surgery technique, by mastoidectomy and posterior tympanotomy and insertion of the electrode array through the round window * age \>6 years * patients without associated disabilities, with good auditory verbal perceptual skills and adequate language skills * the ability to understand and perform the tests administered Exclusion Criteria: * pulsating tinnitus * congenital malformation of the auditory system * history of vestibular schwannoma, active middle ear disease and complete ossification of the cochlea.