We are looking for people to fill out a brief survey on their experiences of mental health symptoms in Lewy body disease. Lewy body diseases can include Parkinson’s, Parkinson’s with dementia or dementia with Lewy bodies. Mental health symptoms such as depression, anxiety or apathy can be quite common in Lewy body diseases but their cause is not well understood. This survey aims to collect expert opinions and experiences from people affected by Lewy body disease to help design future research.