Psychological safety of a multiple channel cochlear implant device. Psychological aspects of a clinical trial.

Fifty-three deaf patients were screened psychologically and medically for suitability to receive an intracochlear implant. After initial screening for psychological normalcy, candidates were assessed again 1 year postimplant. Isolated deleterious psychological effects were found, and certain aspects of psychological functioning were enhanced. Overall evidence suggests that the implant is not psychologically damaging.