Tinnitus has been linked to activity and connectivity changes in the auditory cortex (AC), parahippocampus (PHC), and posterior cingulate cortex (PCC). Although previous studies have targeted these areas individually, no study has yet modulated them simultaneously. Furthermore, novel stimulation designs may be superior to traditional alternating or direct current stimulation. This pilot study investigated the feasibility and safety of a novel brain stimulation technique (high-definition transcranial infraslow pink noise stimulation [HD-tIPNS]) for treating chronic tinnitus targeting the AC, PHC, and PCC.
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