MRI Study of Noninvasive Transcranial Electrical Stimulation in Tinnitus

Inclusion Criteria: * Ages between 18 and 65 * Race/ethnicity: all races and ethnic groups * Sex/Gender: all * Capacity to provide informed consent * Subjective tinnitus symptoms for at least one year prior (confirmed by patient self-report) * Has discussed tinnitus symptoms with clinician (i.e., physician, audiologist) to confirm low/no likelihood of physical or neurological origin of tinnitus symptoms (e.g., acoustic neuroma, Meniere's Disease, etc.), confirmed by patient self-report * Stable standard or no pharmacological treatment regimen for tinnitus (e.g., SSRI or SNRI) with no change in treatment 6 weeks prior to study start Exclusion Criteria: * Ages below 18 (neurobiology is quite different in children vs. adults) * Ages above 65 (cortical excitability changes with age) * Tinnitus symptoms with known medial origin, including: Meniere's disease, pulsatile tinnitus, acoustic neuroma, spontaneous optoacoustic emissions, any other known medical origin * Diagnosis of any medical condition potentially affecting brain function, including: neuropsychiatric or mental disorders, mood disorders (bipolar disorder, anxiety, PTSD), psychotic states or disorders, developmental disorders, neurological disorders, including mild cognitive impairment, significant head injury, significant history of alcohol/substance abuse or dependence, chronic pain (\>1 year duration) * MRI contraindications: metal or other implants that are not MR-safe, claustrophobia, pregnancy or suspected pregn…