For treatment of motor and psychiatric disorders, transcranial electrical stimulation including transcranial direct current stimulation (tDCS), transcranial magnetic stimulation (TMS), or transcranial random noise stimulation (tRNS) are in use worldwidely. The investigators applied these neuromodulation techniques into patients with intractable chronic tinnitus for symptom relief. Experimental groups with 60 subjective tinnitus subjects will be consisted of three different treatment groups which are: TES group, TES with sham stimulation group, and control group. Subjects will be given 1.0 milliampere (mA) TES on bifrontal areas for neuromodulation.
The investigators applied home-based transcranial electrical stimulation (TES) for neuromodulative treatment in patients with intractable chronic tinnitus.