He was also a key figure in American functional psychology , publishing an article on the reflex arc in 1896 which is now considered a cornerstone of that field .
American psychologist , philosopher and progressive educator who is considered one of the founders of the school of pragmatism .
psychologist was also a key figure in American functional psychology , publishing an article on the reflex arc in 1896 which is now considered a cornerstone of that field .
American psychologist , philosopher and progressive educator who is considered one of the founders of the school of pragmatism .