During the 1950s, drugs were discovered that could reduce the symptoms of schizophrenia by _____ levels of the neurotransmitter _____.
A) lowering; dopamine
B) increasing; dopamine
C) lowering; serotonin
D) increasing; serotonin
A) lowering; dopamine
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Ted has been an alcoholic for 20 years and is experiencing brain damage due to poor nutrition. The most likely diagnosis in this case is
a. beriberi. b. Alzheimer's disease. c. Huntington's chorea. d. Korsakoff's psychosis.
Bulimia involves:
a. excessive dieting. c. binge eating and purging. b. excessive exercising. d. all of these
Compare the endocrine system and the nervous system. In what way they are similar to each other?
A. Both regulate mood and emotion B. Both determine secondary sex characteristics C. Both are extremely fast at sending messages D. Both send messages throughout the body
Fred gives his dog a treat each time the dog looks to the left. After a while, Fred only gives a treat when the dog takes a step to the left. Finally, Fred gives a treat only when the dog turns completely around. This situation is an example of
a) shaping. b) extinction. c) classical conditioning. d) negative reinforcement.