The mismatch negativity test in ears with and without tinnitus-a path to the objectification of tinnitus.

Introduction: The mismatch negativity (MMN) test evaluates neural responses to unexpected sounds, providing objective data on the neural plasticity of the auditory system.

Objectives: In this study, we assessed whether the MMN test could identify failure of neural habituation of the auditory pathway in patients with severe tinnitus.

Materials And Methods: Patients with normal hearing were compared to tinnitus patients, via the MMN test.

Group therapy for patients with tinnitus at the University of Brasilia Medical School.

Unlabelled: Although group therapy for tinnitus is a well documented field in the international literature, as far as we know it has never been held in Brazil. This study represents a successful experience of a group therapy for tinnitus based on the tinnitus retraining therapy associated with behavioral cognitive techniques. The goal of the present study is to assess patients with tinnitus before and after the group therapy based on the tinnitus retraining therapy and the behavioral cognitive therapy.