Hi ♫
In 1909, he finished a thesis on the ' Psycho-acoustic ', then he continues his researches about the hearing. Also with Wertheimer and Kurt Koffka, he is the founder of the '' Psychology of form ''. Later he becomes director of the research station anthropoid apes. Then he highlights the phenomena of ''insigth ''.. He also developped a theory about the Psychological isomorphism. He written numerous books about all his work too.
Have a nice day
Catherine