The investigators propose that patients who receive targeted pharmacotherapy (sertraline) or focused psychotherapy (cognitive behavioral therapy-informed psychotherapy (CBT-ip) for NES) or combined treatment (CBT-ip + sertraline) will report fewer nonepileptic seizures (NES) compared to patients who receive community care / treatment as usual (TAU). The purpose of this study is to provide pilot testing and data to inform the future multicenter randomized controlled trial based on the hypothesis.