Find the area of the region that is common to 
and 
.
Definitions:
Operant Conditioning
The practice of influencing a behavior's intensity by granting rewards or imposing punishments.
Token Economies
A behavior modification method that uses tokens as a form of reinforcement for desirable behavior, which can later be exchanged for rewards.
Insight Learning
A cognitive process whereby an individual suddenly comes to understand a problem or conceptualize a solution without the need for trial-and-error behavior.
Aha! Experience
A moment of sudden realization, inspiration, insight, or comprehension, often leading to a problem being solved or understood in a new way.
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