https://tonic.vice.com/en_us/article/qvpae5/would-someone-born-and-raised-in-solitary-have-any-emotions

“According to Lisa Feldman Barrett, the director of Northeastern University’s Interdisciplinary Affective Science Laboratory, emotions are not something that happen to you. Instead, she says, we create them. We create our emotions from bodily sensations, past experiences, and from learning emotional concepts from our parents and cultural upbringing. In short, our emotions are not reactions to the world, but an invention of our brain to explain the cause of our sensations and actions.”