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Plato suggested the brain is the mechanism of mental processes.
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Franz Mesmer detailed his cure for mental illness, originally known as mesmerism, now known as hypnosis.
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French physician Paul Broca discovered an area in the left frontal lobe that plays a key role in language development.
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The first laboratory of Psychology in America is established at Johns Hopkins University.
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The term “Mental Tests” was coined by James Cattell, beginning the specialization in psychology now known as psychological assessment.
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The American Psychological Association was founded
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Sigmund Freud introduced his theory of psychoanalysis in the "the Interpretation of Dreams"
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The British Psychological Society was founded.
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Swiss psychiatrist Herman Rorschach devised a personality test based on patients' interpretations of inkblots.
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Wolfgang Kohler published ‘The Mentality of Apes’ which became a major component of Gestalt Psychology.
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Walter B. Cannon coined the term homeostasis and began research on the fight or flight phenomenon.
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First lobotomy is preformed by Walter Freeman in the USA at George Washington University in Washington D.C. The procedure is intended to relieve severe and debilitating psychosis. It is also a very controversial procedure.
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Electroconvulsive therapy was used for the first time on a person
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Karen Horney published her feministic views of psychoanalytic theory, marking the beginning of feminism.
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The first drug to treat depression is released, it's called imipramine.
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Chlorpromazine (Thorazine) first used in the treatment of schizophrenia.
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Code of Ethics for Psychologists was developed by the American Psychological Association.
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Homosexuality is removed from DSM after intense debate. APA removed homosexuality because it "does not necessarily constitute as a psychiatric disorder".
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American Psychological Society established.
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Psychology advances to the technological age with the emergence of e-therapy.