“…Occupational therapy practitioners routinely work with people who have chronic neurological disorders, including Parkinson's disease (Rao, 2010), Huntington's disease (Bilney, Morris, & Perry, 2003), multiple sclerosis (Steultjens, Dekker, Bouter, Leemrijse, & van den Ende, 2005), amyotrophic lateral sclerosis (Lewis & Rushanan, 2007), essential tremor, and Alzheimer's disease (Letts et al, 2011). For example, in Parkinson's disease, the primary pathology is a depletion of dopamine in the substantia nigra, a nucleus in the basal ganglia.…”