Herbert, the rat, is put in a cage that is chilly. He operates in the environment by moving around the cage and bar-pressing. He discovers that moving around and bar-pressing have no impact on the temperature of the cage or anything else. Soon, Herbert stops moving around the cage at all, and when the temperature could be controlled through bar-pressing, he doesn't figure it out. Herbert is
experiencing ____.?
a. ?learned helplessness
b. ?stimulus discrimination
c. ?punishment
d. ?negative reinforcement
ANSWER:
a
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