Answer:
Mary's mother never wanted to see her because she thought of her as an ugly and sickly child. I think this hurt Mary badly and she is mean because she hasn't been shown kindness but the person who should be close to her. She was taken care of by servants instead of her mom. If Mary had been shown some compassion, she could've turned out differently.
The cerebellum is part of the hindbrain in vertebrates. It lies between the brainstem and cerebrum in humans and helps regulate motor movements, helps us perceive senses and coordinates voluntary movements like posture and balance.