Answer:
Sigmund Freud
Step-by-step explanation:
The answer is Sigmund Freud.
Sigmund Freud, most popularly known as Freud was an Austrian neurologist. He is known as the father of psychoanalysis.
Sigmund Freud highlighted the importance of the unconscious mind and argued that people are not aware of the unconscious mind but it drives a person’s behavior and thinking. According to him, the unconscious mind influences the behavior and the thinking capabilities of an individual to a great extend.
Thus the answer is -- Sigmund Freud.