Tinnitus has long been approached as an “ear” problem.  Patients are referred to Otolaryngologists and Audiologist for evaluation and treatment.  Although tinnitus is most often triggered by an insult to the ear, current models implicate the brain as the primary site of prolonged tinnitus generation.  Analogs to pain, and in specific, phantom limb pain, seem appropriate.  In this presentation, four studies in progress at the Oregon Hearing Research Center Tinnitus Clinic related to the neurobiology of tinnitus are presented and related to the models of tinnitus generation that they address.  Topics include the relationship between tinnitus severity and obsessive compulsive disorder, effects of repetitive transcranial magnetic stimulation, effects of deep brain thalamic stimulation, and the effects of intrathecal administration of baclofen.