Parkinson's disease causes muscle contractions.
Norie Sato -LRB- born July 19 , 1949 -RRB- is an artist living in Seattle , Washington .. She works in the field of public art using sculpture and various media -- including glass , terrazzo , plastic film , stone , and metal -- and often incorporating lighting effects , landscaping , mosaics , prints , and video .. public art. public art. She frequently collaborates with architects , city planners , and other artists and specializes in integrating artwork and site specific design .