A.B., Harvard University, 1978; Ph.D., Rockefeller University, 1983. Assistant Professor, Caltech, 1986-92; Associate Professor, 1992-96; Professor, 1996-2004; Roger W. Sperry Professor, 2004-09; Benzer Professor, 2009-. Assistant Investigator, 1989-92; Associate Investigator, 1992-97; Investigator, 1997-. David J. Anderson, Ph.D., is Seymour Benzer Professor of Biology at the California Institute of Technology where he has been on the faculty since 1986.