The ethologic model of phonetic development: II. The closant curve

Michael Robb, Harold R. Bauer

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The ratio of closants-to-vocants (C: V), a phonetic diversity estimator proposed by the ethologic model of phonetic development, was examined to test the 'closant curve' hypothesis (Bauer, 1988). The closant curve reflects a regular increase in the ratio of consonants (closants) to vowels (vocants) in early vocal and speech productions of young children. C:V ratios were plotted for seven children's monthly vocalizations covering the period of 8 to 25 months of life. The results revealed a closant curve developmental function, reflecting a systematic increase in closant use according to chronological age. The hypothesis was further tested and validated in the vocalizations of a cross-sectional sample of 21 children. The findings support the closant curve hypothesis and the application of an ethologic model to evaluate early phonetic development.

Original languageEnglish (US)
Pages (from-to)339-353
Number of pages15
JournalClinical Linguistics and Phonetics
Volume5
Issue number4
DOIs
StatePublished - Jan 1 1991

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Phonetics
phonetics
Vocalization

All Science Journal Classification (ASJC) codes

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

Cite this

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The ethologic model of phonetic development : II. The closant curve. / Robb, Michael; Bauer, Harold R.

In: Clinical Linguistics and Phonetics, Vol. 5, No. 4, 01.01.1991, p. 339-353.

Research output: Contribution to journalArticle

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