What is the typical outcome among nonhuman primates who are raised in isolation without a parent or substitute attachment figure?

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Studies have shown that nonhuman primates raised in isolation without a parent or substitute attachment figure have dramatically troubled relationships, and exhibit abnormal behaviors such as excessive aggression, self-mutilation, and fearfulness. This suggests that early attachment experiences are crucial for healthy social development in nonhuman primates.

What Is the Typical Outcome Among Nonhuman Primates Who Are