Answer: The part of brain affected is the Ventromedial hypothalamus
Explanation:The ventromedial hypothalamus , also known as satiety center is a part of the hypothalamus in the brain wihch controls appetite, fear , responses, and regulation, emotions etc .
Because of the shock which affected the Ventromedial hypothalamus part of her brain, Biscotti is always eating huge quantities of food many times a day, The is due to the fact that the part of the brain has been tampered can no longer control appetite causing her to eat without control which may lead to excessive weight gain.