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Plato suggested that the brain is the mechanism of mental processes.
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Aristotle suggested that the heart is the mechanism of mental processes.
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Ernst Heinrich Weber published his perception theory of ‘Just Noticeable DIfference,’ now known as Weber’s Law.
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Phineas Gage suffered brain damage when an iron pole pierces his brain. His personality was changed but his intellect remained intact suggesting that an area of the brain plays a role in personality.
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The first laboratory of psychology in America is established at Johns Hopkins University.
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Herman Ebbinghaus introduced the nonsense syllable as a means to study memory processes.
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Sigmund Freud began performing therapy in Vienna, marking the beginning of personality theory.
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William James published ‘Principles of Psychology,’ that later became the foundation for functionalism.
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Sir Francis Galton developed the technique known as the correlation to better understand the interrelationships in his intelligence studies.
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Alfred Binet founded the first laboratory of psychodiagnosis.
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The first psychological clinic was developed at the University of Pennsylvania marking the birth of clinical psychology.
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Edward Thorndike developed the ‘Law of Effect,’ arguing that “a stimulus-response chain is strengthened if the outcome of that chain is positive.”
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Ivan Pavlov published the first studies on Classical Conditioning.
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The Journal of Abnormal Psychology was founded by Morton Prince.
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Max Wertheimer published research on the perception of movement, marking the beginnings of Gestalt Psychology.
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John E. Watson published ‘Psychology as a Behaviorist Views It’ marking the beginnings of Behavioral Psychology.
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Stanford-Binet intelligence test was published in the United States.
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The Journal of Clinical Psychology was founded
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Code of Ethics for Psychologists was developed by the American Psychological Association.
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Psychologists in Guam gain prescription privileges for psychotropic medication.
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The push for mental health parity gets the attention of the White House as President George W. Bush promotes legislation that would guarantee comprehensive mental health coverage.