Understanding CBT Success in Social Anxiety and Body Dysmorphic Disorder

Inclusion Criteria: Clinical sample (N=110): 1. Men and women, age 18-45 2. Treatment-seeking individuals who meet criteria for a primary DSM-5 diagnosis of primary social anxiety disorder (SAD) or body dysmorphic disorder (BDD) based on the SCID-5-RV 3. Fluent in English and willing to provide informed consent. Control sample (N=50): 1. Men and women, age 18-45 2. No current or lifetime history of psychiatric disorders, as assessed using the SCID-5-RV 3. Meet criteria for low levels of anxiety (GAD-7 score of \<8) and depression (PHQ-9 score \<10) 4. Fluent in English and willing to provide informed consent Exclusion Criteria: All groups: 1. Score \< 80 based on WRAT5 Word Reading Subtest 2. fMRI contraindications (e.g., electronic medical devices such as pacemakers, implanted defibrillators, etc.; metal implants not approved for MRI; pregnancy; claustrophobia) 2\. Active suicidal or homicidal ideation, or any features requiring a higher level of care 3. Lifetime history of manic or hypomanic episode, psychotic symptoms, traumatic brain injury, neurological disorder, pervasive developmental disorder, or attention deficit-hyperactivity disorder; active alcohol or substance use disorder in the past 6 months 4. Current use of psychotropic medications, except antidepressants taken at a stable dose for 3 months prior to study baseline 5. Previous CBT non-responder or current CBT