Wilhelm Wundt (1832 - 1930) is known as the "Founder of Modern Psychology" and the "Father of Experimental Psychology". He established the first laboratory in the world that was dedicated to Experimental Psychology, particularly investigations on the senses and perceptions.
Wundt used the method of Introspection to investigate psychological phenomena. This involved the subject's observation and reporting of his own inner thoughts and sensations, and was very difficult to master.
Although Wundt's theories and methods fell out of favor in the 1920's, his greatest contribution was to demonstrate that psychology could become a true science.