The novelist celebrated for his psychological perceptions in literature is Fyodor Dostoevsky. His works, like "Crime and Punishment" and "The Brothers Karamazov," delve deeply into the complexities of the human psyche, exploring themes of morality, guilt, and existentialism. Dostoevsky's profound character development and intricate narratives challenge readers to confront their own beliefs and motivations, solidifying his reputation as a cornerstone of psychological literature.