n.
In psychology , a broad school of thought that originated in the U.S. in the late 19th century and emphasized the total organism in its endeavours to adjust to the environment.
Reacting against the school of structuralism led by Edward Bradford Titchener , functionalists such as William James , George Herbert Mead , and John Dewey stressed the importance of empirical, rational thought over an experimental trial-and-error philosophy. The movement concerned itself primarily with the practical applications of research (see applied psychology ) and was critical of early forms of behaviourism .