Donald Broadbent (1926 - 1993) was a British psychologist who proposed his Filter Model as a way to explain attention. As a cognitive scientist, he focused on aspects such as implict learning, and was famous for his usage of the dichotic listening task in the proposal of his model.
Broadbent was educated at the University of Cambridge, and became a director of the Applied Psychology Research Unit. He worked there until retiring. Broadbent worked with other Psychologists and Cognitive Scientists, such as Dianne Berry, and expanded on the works of Frederick Bartlett