Multiple Choice
What observation suggested that play behavior in rats is important for enriching and stimulating the developing brain?
A) Psychostimulants increase play duration.
B) Play is associated with increases in the levels of growth factors in the brain.
C) Endogenous opioid release is decreased in the brain during play.
D) Play is associated with decreases in the levels of growth factors in the brain.
Correct Answer:

Verified
Correct Answer:
Verified
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