Network Dysregulation Among Individuals With Comorbid Tinnitus and PTSD

The purpose of this study is to characterize tinnitus and PTSD symptomatically, neurobiologically, and causally, applying causal modeling to psychometric and neurofunctional data. We will enroll 30 individuals with both tinnitus and PTSD. Participants will be asked to complete baseline assessments of subjective tinnitus distress, PTSD, depression, and resting-state fMRI at baseline. Individuals with comorbid tinnitus and PTSD who are eligible for the study will receive 12 sessions of Cognitive Processing Therapy (CPT) over a 6- to 15-week period. CPT is a trauma-focused treatment for PTSD that guides individuals on how to recognize and challenge thoughts that are erroneous and dysfunctional. One-month follow-up assessments of tinnitus-related distress, PTSD, depression, and anxiety will be conducted, along with resting-state functional magnetic resonance imaging (fMRI).