The 9th International MDPD Congress is a highly regarded meeting the aim of which is to facilitate discussions on the latest developments in the understanding of non-motor aspects in Parkinson’s disease and related disorders.This premier meeting on dementia and other non-motor impairments related to Parkinson’s disease features a splendid scientific programme that will focus on Parkinson’s dementia and of dementia with Lewy bodies, and also the biochemical and genetic factors involved, as well as on autonomic, sensory and basic aspects. These aspects in non-PD movement disorders will also be discussed.