" they retain most of their ability to think as a human, their own sense of identity and their memories. They will also retain normal human life expectancy, even if they take their animal form for long periods of time. However, feelings and emotions are simplified and they will have many animal desires, feeding off whatever their animal body craves, rather than demanding human food. "

― J.K. Rowling , Short Stories from Hogwarts of Heroism, Hardship and Dangerous Hobbies (Pottermore Presents, #1)