In contrast to developmental integration, an account of multisensorydevelopment that posits that the senses are initially fused, and thatdevelopment is a process of differentiation of those initially fused percepts. This account owes a great deal to the work of Eleanor J. Gibson (1910-2002) that started with the publication of her first book in 1969.
See Developmental integration, Intersensory perceptual narrowing, Intersensory redundancy hypothesis
Gibson, E. J. (1969). Principlesof perceptual learning and development. New York, NY: Appleton-CenturyCrofts.