Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) progressive supranuclear palsy ?
    ### Response:
    Progressive supranuclear palsy is a brain disorder that affects movement, vision, speech, and thinking ability (cognition). The signs and symptoms of this disorder usually become apparent in mid- to late adulthood, most often in a person's 60s. Most people with progressive supranuclear palsy survive 5 to 9 years after the disease first appears, although a few affected individuals have lived for more than a decade.
    