Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Perry syndrome ?
    ### Response:
    Perry syndrome is a progressive brain disease that is characterized by four major features: a pattern of movement abnormalities known as parkinsonism, psychiatric changes, weight loss, and abnormally slow breathing (hypoventilation). These signs and symptoms typically appear in a person's forties or fifties.
    