Final answer:
One core principle shared by the psychodynamic perspectives on personality is that unconscious processes influence behavior.
Step-by-step explanation:
One core principle shared by the psychodynamic perspectives on personality is that unconscious processes influence behavior. According to Sigmund Freud and his followers, personality is shaped by unconscious drives and childhood experiences.
Freud's theory focused on the importance of the unconscious mind and how it influences our thoughts, feelings, and behaviors. Other theorists, known as neo-Freudians, also emphasized the role of the unconscious, although they placed less emphasis on sex and more on the social environment. Overall, the psychodynamic perspectives highlight the significance of the unconscious mind in understanding personality.