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Isaac Madison Bentley (Clinton, Iowa 1870– California 1955) was an American psychologist.

Early Life & Education

The Bentleys were from Upstate New York, the town of Warners northeast of Syracuse. Bentley studied psychology at the University of Nebraska. Harry Kirke Wolfe[1] was his mentor. He also studied under Wilhelm Wundt at the University of Leipzig during the AY1886-1887, later taking his bachelor’s degree in 1895. He then commenced graduate work at Cornell University under the supervision of Edward B. Titchener, receiving his PhD in 1899.

Academic career

Teaching at Cornell, Bentley was elevated to assistant professor in 1902; chairman of the Psychology Department in 1910. He left Cornell for Illinois in 1912. During the First World War, he conducted U.S. Army Air Corps research on the ear. In 1928, Bentley returned to Cornell and became Titchener’s successor as the Sage Professor of Psychology and Chairman of the Psychology Department.

Theoretical Disposition

Bentley opposed both the behaviorism and mentalism movements of psychology. In his view, psychological functions were different. They surmounted a distinction between the organism and the environment. The environment was absorbed by the organism. Research into psychological functions ought to describe the functions modes and derivations.[2]


Professor Bentley’s contribution to the field of psychology was prolific. He wrote on the memory image,[3] analysis of complex sensations,[4] learning in paramecia,[5] mental disorders,[6] and anthropological psychology.[7] But I. Madison Bentley's greatest skill was that of editing. He was cooperating editor, American Journal of Psychology, as early as 1903. He remained with the Journal until 1950, finishing out as co-editor. He also tended The Psychological Index (1916 to 1925), served as associate editor, Journal of Comparative Psychology (1921–1935); editor, Journal of Experimental Psychology (1926–1929).


  1. Ludy T. Benjamin Jr., A teacher is Forever: The Legacy of Harry Kirke Wolfe (1858-1918), Teaching of Psychology (April 1987) at 68-74.
  2. C.W. Tolman, Bentley, Madison (1870-1955) in Encyclopedia of Psychology (E. Kazdin, ed.)(APA & Oxford University Press 1999).
  3. American Journal of Psychology (1899) at 1-48.
  4. American Journal of Psychology (1900) at 405-425
  5. Journal of Animal Behavior (1911) at 67-73,
  6. The Problem of Mental Disorders (1934)
  7. American Journal of Psychology (1947) at 479.

External links

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