Mark Rosenzweig's famous study of rats that were raised in either "enriched" or "impoverished" environments demonstrated that rats raised in enriched environments:
A) lived longer
B) gained more weight
C) had heavier, more complex brains
D) had more difficult mating with other rats when they reached maturity

Question

Quizplus · Accepted Answer

Rosenzweig's study found that rats raised in enriched environments had heavier, more complex brains due to the increased neuroplasticity from exposure to stimulating environments. There was no evidence of increased lifespan or weight gain. The study did not address mating difficulties.

Mark Rosenzweig's Famous Study of Rats That Were Raised in Either