The art movement that Freud most heavily influenced was surrealism.
Surrealism was an art movement that had great influences from psychoanalysis. The main ideas of this art movement was gotten from the ideas of Sigmund Freud.
Sigmund Freud was a psychologist. Most of his works on psychology was based on how the human mind functions.
The surrealists based their arts on Sigmund Freud's research on dreams and the unconscious mind. Their art was basically based on such images that could not be possible in actual life.
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