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G. Stanley Hall
Becomes the first American to earn a Ph.D. in psychology. Hall eventually founds the American Psychological Association. -
Wilhelm Wundt
Founds the first experimental psychology lab in Leipzig, Germany. The event is considered the starting point of psychology as a separate science. -
Wilhelm Wundt
1881 --Wundt forms the professional journal Philosophische Studien (Philosophical Studies) -
G. Stanley Hall
Opens the first experimental psychology lab in the United States at John Hopkins University. -
Herman Ebbinghaus
Published his famous Über das Gedächtnis ("On Memory"), which was later translated to English as Memory. A Contribution to Experimental Psychology. In the work, he describes his learning and memory experiments that he conducted on himself. -
Sigmund Freud
Begins providing therapy to patients in Vienna, Austria. -
James McKeen Cattell
Becomes the first professor of psychology at the University of Pennsylvania. -
James McKeen Cattell
Publishes Mental Tests and Measurements, marking the beginning of the practice of psychological assessment. -
G. Stanley Hall
Forms the American Psychological Association (APA), which initially has just 42 members. -
Margaret Floy Washburn
Completes her training under Tichener -
Alfred Binet
Forms the first psychology lab devoted to psychodiagnosis. -
Edward Thorndike
Develops the Law of Effect. -
Sigmund Freud
Publishes Interpretation of Dreams. -
The British Psychological Society
Is formed on this date. -
Mary Whiton Calkins
Is elected the first woman president of the American Psychological Association. -
Ivan Pavlov
Publishes his findings on classical conditioning. -
Carl Jung
Publishes The Psychology of Dementia Praecox. -
Edward Thorndike
Publishes Animal Intelligence. The article leads to the development of the theory of operant conditioning. -
Carl Jung
Begins to depart from Freudian views and develops his own theories, which are eventually known as analytical psychology. -
John B. Watson
Publishes Psychology as the Behaviorist Views It. The work helped establish behaviorism, which viewed human behavior arising from conditioned responses. -
Sigmund Freud
Publishes work on repression. -
Robert Yerkes
Then president of the APA, Robert Yerkes writes the Alpha and Beta Tests for the Army to test intelligence. -
John B. Warson
Publishes Psychology, From the Standpoint of a Behaviorist. -
John B. Watson and Rosalie Rayner
Publish research the classical conditioning of fear with their subject, Little Albert. -
Wolfgang Kohler
Gestal Psychology is brought to America with the publication of Wolfgang Kohler’s Perception: An Introduction to the Gestalt Theory. -
Jean Piaget
Becomes the foremost cognitive theorist with the publication of his work The Moral Judgment of Children. -
Henry Murray
Publishes the Thematic Appreception Test (TAT). -
Carl Rogers
Developed client-centered therapy and publishes Counseling and Psychotherapy. His approach encourages respect and positive regard for patients. -
The Diagnostic and Statistical Manual of Mental Disorders
The Diagnostic and Statistical Manual of Mental Disorders is published. -
Abraham Maslow
Publishes Motivation and Personality, describing his theory of a hierarchy of needs. He also helps found humanistic psychology. -
Harry Harlow
Publishes The Nature of Love, which describe his experiments with rhesus monkey's on the importance of attachment and love. -
Albert Bandura
Conducts his now famous Bobo doll experiment. -
Albert Bandura
First describes the concept of observational learning to explain personality development. -
Stanley Milgram
Publishes Obedience to Authority, which presented the findings of his famous obedience experiments. -
DSM-III
The DSM-III is published. -
Noam Chomsk
Publishes On Nature, Use and Acquisition of Language. -
Steven Pinker
Publishes an article in Science introducing his theory of how children acquire language, which he later details further in his book The Language Instinct. -
DSM-IV
The DSM-IV is published. -
Mapping Genes
Genetic researchers finish mapping human genes. Scientists hope to one day isolate the individual genes responsible for different diseases. -
Steven Pinker
Publishes The Blank Slate, arguing against the concept of tabula rasa. -
George Mandler
Published A History of Modern Experimental Psychology[74] -
DSM-5 Draft
The draft of DSM-5 by the American Psychiatric Association (APA) was distributed for comment and critique. -
10-year BRAIN Initiative
2013 - On April 2 U.S. President Barack Obama announced the 10-year BRAIN Initiative to map the activity of every neuron in the human brain. -
DSM-5
The DSM-5 was published by the American Psychiatric Association (APA).