Answer:
Max Wertheimer
Step-by-step explanation:
Max Wertheimer was a German psychologist who has introduced the Gestalt psychology and had a great impact on psychology. He was born in 1880 and died in 1943. He has developed the phi-phenomenon which is considered as the basis of Gestalt psychology.
Perceptual phenomenon is based on the human tendency to look for and understand a particular object as a complete structure instead of the sum of its parts.