Carl Porter Duncan (December 27, 1921 – August 9, 1999) was a professor of experimental psychology at Northwestern University.
His PhD thesis, The Effect of Electroshock Convulsions on Learning and Retention in The Rat is regarded as seminal, a classic study in cognitive neuroscience.
Duncan met his wife, Marie Castaldi, while at Brown University, and they were married in 1948.
Professor Duncan, after getting his PhDs at Brown, began working at Northwestern University in 1947.
Duncan retired with the title of professor emeritus in 1987, after a 40-year career at Northwestern University and stayed in the Chicago area (specifically, in Libertyville, Illinois) for the rest of his life.