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Sigmund Freud - Developed theory of psychoanalysis
Developed his theory of psychoanalysis -
Ivan Pavlov publishes theories on conditioned response and reflex
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Carl Jung, following Freud's steps, develops psychodynamic theory
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Freud began a lecture tour accros North America making his theories widespread
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Ernest Jones supports the use of lay ananlysis
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John Watson uses prediction to develop Behaviorism
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A.A. Brill succesfully petitions to make lay analysis illegal in the United States
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Robert Hoppock desgins his career development theory
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B.F Skinner coins operant conditioning
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Carl Rodgers leads to a distinction between counseling and psychotheraphy
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Carl Rodgers designs person-centered Humanistic theory
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Abraham Maslow - Hierarchy of needs
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Jean Piaget begins a focus on cognitive ability
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Fretz Perls helps support Gestalism
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Aaron Beck begins a real focus on depression