On the interaction of velar fronting and labial harmony

Daniel A. Dinnsen, Christopher R. Green, Michele L. Morrisette, Judith A. Gierut

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


This article documents the typological occurrence and interactions of two seemingly independent error patterns, namely Velar Fronting and Labial Harmony, in a cross-sectional investigation of the sound systems of 235 children with phonological delays (ages 3;0 to 7;9). The results revealed that the occurrence of Labial Harmony depends on the occurrence of Velar Fronting, and that, when these processes co-occurred, all three predicted types of interactions were attested. A constrained version of Optimality Theory is put forward that offers a unified explanation for the implicational relationship between these error patterns and their observed interactions. The findings are compared with the results from other studies and are considered for their theoretical and clinical implications.

Original languageEnglish (US)
Pages (from-to)231-251
Number of pages21
JournalClinical Linguistics and Phonetics
Issue number3
StatePublished - Mar 2011
Externally publishedYes


  • Optimality Theory
  • implicationally related error patterns
  • phonological delay
  • typology

ASJC Scopus subject areas

  • Language and Linguistics
  • Linguistics and Language
  • Speech and Hearing


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