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387 BCE
387 bc
387 BC Plato suggested that the brain is the mechanism of mental processes. -
335 BCE
335 bc
335 BC Aristotle suggested that the heart is the mechanism of mental processes. -
Period: 300 BCE to
history of psychology
the history of psychology -
1774 ad
1774 AD Franz Mesmer detailed his cure for some mental illness, originally called mesmerism and now known as hypnosis. -
1793
1793 Philippe Pinel released the first mental patients from confinement in the first massive movement for more humane treatment of the mentally ill. -
1808
1808 Franz Gall wrote about phrenology (the idea that a person’s skull shape and placement of bumps on the head can reveal personality traits -
1834
1834 Ernst Heinrich Weber published his perception theory of ‘Just Noticeable DIfference,’ now known as Weber’s Law. -
1848
1848 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. -
1859
1859 Charles Darwin published the On the Origin of Species, detailing his view of evolution and expanding on the theory of ‘Survival of the fittest.’ -
1861
1861 French physician Paul Broca discovered an area in the left frontal lobe that plays a key role in language development. -
1869
1869 Sir Francis Galton, Influenced by Charles Darwin’s ‘Origin of the Species,’ publishes ‘Hereditary Genius,’ and argues that intellectual abilities are biological in nature. -
1879
1879
Wilhelm Wundt founded the first formal laboratory of Psychology at the University of Leipzig, marking the formal beginning of the study of human emotions, behaviors, and cognitions. -
1883
1883 The first laboratory of psychology in America is established at Johns Hopkins University. -
1885
1885 Herman Ebbinghaus introduced the nonsense syllable as a means to study memory processes. -
1886
1886 Sigmund Freud began performing therapy in Vienna, marking the beginning of personality theory. -
1890
1890 The term “Mental Tests” was coined by James Cattell, beginning the specialization in psychology now known as psychological assessment. -
1890
1890 Sir Francis Galton developed the technique known as the correlation to better understand the interrelationships in his intelligence studies. -
1895
1895 Alfred Binet founded the first laboratory of psychodiagnosis. -
1896
1896 The first psychological clinic was developed at the University of Pennsylvania marking the birth of clinical psychology. -
1898
1898 Edward Thorndike developed the ‘Law of Effect,’ arguing that “a stimulus-response chain is strengthened if the outcome of that chain is positive.” -
2002
2002 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.