title: Typological predictions in developmental phonology.
abstract: Two common and seemingly independent error patterns, namely consonant harmony and gliding, are examined for their typological characteristics based on cross-sectional and longitudinal evidence from young children's developing phonologies. Data are drawn from the published literature and from the developmental phonology archives at Indiana University. An asymmetry is observed such that the occurrence of harmony is found to imply the occurrence of gliding, but not vice versa. While this finding would be unexpected within contemporary derivational theories, it can be shown to follow within optimality theory from a fixed universal ranking relationship among certain constraints. Optimality theory is also argued to offer a viable developmental account with clinical implications that can serve as a further test of the theory.
authors.affiliation: Department of Linguistics, Indiana University, Memorial Hall East 322, 1021 East Third Street, Bloomington, IN 47405-7005, USA. dinnsen@indiana.edu
authors.forename: D A
authors.initials: DA
authors.lastname: Dinnsen
authors.forename: K M
authors.initials: KM
authors.lastname: O'Connor
mesh_terms: D002663:Child Language; D003430:Cross-Sectional Studies; D006801:Humans; D007223:Infant; D008137:Longitudinal Studies; D010700:Phonetics; D014705:Verbal Behavior