Parkinson's disease (PD) is a neurodegenerative disorder primarily characterized by its motor symptoms, including: bradykinesia, akinesia, muscular rigidity, resting tremor, freezing of gait (FOG), and impaired gait and balance (Almeida & Lebold, 2010; DeMaagd & Philip, 2015; Postuma et al., 2015). However, also non-motor symptoms manifest in PD, such as autonomic, cognitive, neurobehavioral, sleep, sensory, and perceptual impairments, and these can have an important impact on a patient's function and