psych By carleeconrad Jan 1, 1875 Formed the first psychology lab at Harvard. Jan 1, 1879 Institute for Experimental Psychology in Germany is opened Jan 1, 1883 Discovered the dynamic nerves of the heart. Jan 1, 1883 First academic journal for psychological research is written Jan 1, 1890 Published The Principles of Psychology Jan 1, 1891 Book on aphasias is published Jan 1, 1896 Psychoanalysis is developed Jan 1, 1897 Published Lectures on the Functions of the Principal Digestive Glands. Jan 1, 1904 Founded the group "Experimentalists" which is known today as the "Society of Experimental Psychologists" Jan 1, 1909 Credited for the word "empathy", meaning Einfuhlungsvermogen in German. Jan 1, 1914 Developed the concepts of Gestalt Psychology. Jan 1, 1915 served as the President of the American Psychological Association. Jan 1, 1928 Published the book called: Psychological Care of Infant and Child Jan 1, 1934 Wrote the book Productive Thinking. Jan 1, 1938 Founded operant conditioning, changing of behavior by the use of reinforcement. Jan 1, 1943 Invented the 'Baby Tender"