Jordan Bernt Peterson is a Canadian clinical psychologist and a professor of psychology at the University of Toronto. His main areas of study are in abnormal, social, and personality psychology, with a particular interest in the psychology of religious and ideological belief, and the assessment and improvement of personality and performance.
Sigmund Freud was an Austrian neurologist and the founder of psychoanalysis, a clinical method for treating psychopathology through dialogue between a patient and a psychoanalyst.
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Phillip Calvin McGraw, known as Dr. Phil, is an American television personality, author, psychologist, and the host of the television show Dr. Phil, which debuted in 2002. McGraw first gained celebrity status with appearances on The Oprah Winfrey Show in the late 1990s. In 2017, Forbes listed his earnings at $79 million for the previous 12 months, and ranked him the 15th highest earning celebrity in the world.
Timothy Francis Leary was an American psychologist and writer known for advocating the exploration of the therapeutic potential of psychedelic drugs under controlled conditions.
Jean Piaget was a Swiss psychologist known for his work on child development. Piaget's theory of cognitive development and epistemological view are together called "genetic epistemology".
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Burrhus Frederic Skinner, commonly known as B. F. Skinner, was an American psychologist, behaviorist, author, inventor, and social philosopher. He was the Edgar Pierce Professor of Psychology at Harvard University from 1958 until his retirement in 1974.
William James was an American philosopher and psychologist, and the first educator to offer a psychology course in the United States. James was a leading thinker of the late nineteenth century, one of the most influential U.S. philosophers, and has been labelled the "Father of American psychology".
John Dewey was an American philosopher, psychologist, and educational reformer whose ideas have been influential in education and social reform. Dewey is one of the primary figures associated with the philosophy of pragmatism and is considered one of the fathers of functional psychology. A Review of General Psychology survey, published in 2002, ranked Dewey as the 93rd most cited psychologist of the 20th century. A well-known public intellectual, he was also a major voice of progressive education and liberalism. Although Dewey is known best for his publications about education, he also wrote about many other topics, including epistemology, metaphysics, aesthetics, art, logic, social theory, and ethics. He was a major educational reformer for the 20th century.
Abraham Harold Maslow was an American psychologist who was best known for creating Maslow's hierarchy of needs, a theory of psychological health predicated on fulfilling innate human needs in priority, culminating in self-actualization. Maslow was a psychology professor at Alliant International University, Brandeis University, Brooklyn College, New School for Social Research, and Columbia University. He stressed the importance of focusing on the positive qualities in people, as opposed to treating them as a "bag of symptoms." A Review of General Psychology survey, published in 2002, ranked Maslow as the tenth most cited psychologist of the 20th century.
Steven Arthur Pinker is a Canadian-American cognitive psychologist, linguist, and popular science author. He is Johnstone Family Professor in the Department of Psychology at Harvard University, and is known for his advocacy of evolutionary psychology and the computational theory of mind.
Daniel Kahneman is an Israeli-American psychologist notable for his work on the psychology of judgment and decision-making, as well as behavioral economics, for which he was awarded the 2002 Nobel Memorial Prize in Economic Sciences. His empirical findings challenge the assumption of human rationality prevailing in modern economic theory.
William Moulton Marston, also known by the pen name Charles Moulton, was an American psychologist, inventor of an early prototype of the lie detector, self-help author, and comic book writer who created the character Wonder Woman.
Erik Homberger Erikson was a German-American developmental psychologist and psychoanalyst known for his theory on psychological development of human beings. He may be most famous for coining the phrase identity crisis. His son, Kai T. Erikson, is a noted American sociologist.
Lev Semyonovich Vygotsky was a Soviet psychologist, the founder of an unfinished theory of human cultural and bio-social development commonly referred to as cultural-historical psychology, a prominent advocate for a new theory of consciousness, the "psychology of superman", and leader of the Vygotsky Circle.