Atypical Parkinsonian Syndromes, such as progressive supranuclear palsy (PSP), multiple system atrophy (MSA), corticobasal degeneration (CBD), and dementia with Lewy bodies are often initially diagnosed as Parkinson's disease. Incorrect, incomplete, or delayed diagnoses are barriers to beginning the most appropriate treatment early in the disease course. More research is needed to facilitate early diagnoses, understanding of disease pathogenesis, and monitoring of disease progression. However, largescale, collaborative initiatives are making meaningful progress in understanding genetic contributors to disease pathology and progression in Parkinson's disease. Our guest in this episode, Dr. Huw Morris, has spent more than twenty five years researching Parkinson's disease and parkinsonian syndromes, and he shares highlights from recent work, including studies on the genetics and pathogenesis of Parkinson’s disease and other parkinsonian syndromes. Huw is Professor of Clinical Neuroscience at University College London Institute of Neurology, as well as an Honorary Consultant Neurologist at the Royal Free Hospital and the National Hospital for Neurology and Neurosurgery Queen Square.  This podcast is geared toward researchers and clinicians. If you live with Parkinson’s or have a friend or family member with PD, listen to The Michael J. Fox Foundation Parkinson’s Podcast. Hear from scientists, doctors and people with Parkinson's on different aspects of life with the disease as well as research toward treatment breakthroughs at https://www.michaeljfox.org/podcasts.