Telehealth Psychotherapy for Depression in Parkinson's Disease

The investigators plan to conduct a randomized control trial with 12 participants. Six (PD-early) will receive three assessments: baseline, immediately post-treatment (post1), and 6 weeks after treatment (post2). The other six (PD-waitlist) will have an additional assessment (Baseline 2; 12 weeks after Baseline 1) to examine practice effects before beginning treatment, and then will have the post1 and post2 assessments (four assessments).