A person with Parkinson's disease is MOST likely to have a problem with which of the following neurotransmitters?

By a continuous reinforcement schedule, we mean that

a. reinforcements occur continuously regardless of the subject's behavior. b. responding without pausing is the requirement for reinforcement. c. each correct response is reinforced. d. reinforcement continues even when errors are made.

The "thinking" part of the brain is the

a) medula b) hypothalamus c) cerebrum d) cerebellum