He turned his attention to industrial psychology in Eupsychian Management, while his late essays are collected in The Farther Reaches of Human Nature.  
He showed that monkeys intimadate each other visually rather than physically in his dissertation on "dominance in the social and sexual behavior of infra-human primates."  He turned his attention to industrial psychology in Eupsychian Management, while his late essays are collected in The Farther Reaches of Human Nature.  Dissastisfied with both behaviorism and psychoanalysis, he introduced a "third force" which came to be known as humanistic psychology.  His first major statement of his thought came in Motivation and Personality, while Toward a Psychology of Being set forth his mature views.  FTP, name this American psychologist who introduced the notion of peak experiences, along with self-actualization and his hierarchy of needs.
He showed that monkeys intimadate each other visually rather than physically in his dissertation on "dominance in the social and sexual behavior of infra-human primates."  
Abraham Maslow