Presents two models of language acquisition: one postulating articulatory learning of underlying adult forms and the other both articulatory and perceptual learning. Reanalyzes the first model's data and concludes that two types of phonological rules are recognizable: perceptual-encoding rules and output (articulatory) rules. Identifies properties…

The three general approaches for measuring speech intelligibility in young children are open-set word identification, closed-set word identification, and rating scales. Positive and negative aspects of the various procedures for measuring speech intelligibility are discussed. (Author/DB)

This study examined effects of familiarity with a speech target on coarticulation magnitude in 30 young children and 10 adults. Children exhibited a greater effect of a following vowel on the preceding fricative than did adults. Nonmeaningful production items exhibited greater effects of the vowel on the preceding fricative than did meaningful…

This study investigated developmental patterns of acquisition of the unrounded U.S. English vowels, by following 6 normally developing children from 22 to 30 months of age. Three classes of production errors were identified: intertrial production variability, context-sensitive substitutions, and context-free systematic substitution patterns.…

A case study describes the use of a facilitating phonetic context to decrease the occurrence of an unusual form of gliding. The process of differentiating the phones /l/ and /j/ involved systematic changes differing from the expected route of development. Results support the value of a key word approach in treating recalcitrant phonological…

Two experiments examined phonological priming in children and adults using a cross-modal picture-word interference task. Pictures of familiar objects were presented on a computer screen, while interfering words were presented over headphones. Results indicate that priming effects reach a peak during a time when articulatory information is being…

An analysis of Old English phonology examines two traditional sound changes, the First and Second Frontings, that have been analyzed by different linguists with rather abstract theories. These analyses are refuted, and a more concrete and realistic treatment is proposed for each. Examination of Anglo-Frisian Brightening, or First Fronting, raises…

Current opinion regarding the nature of the young child's representation of two or more languages is that there is one system during the earliest stages of development. This paper explores theoretical and methodological difficulties underlying this issue. Theoretically, it is questioned what is being claimed about the child's cognitive capacities…

Perception and production data were collected from 28 children, ages 1 year 8 months to 3 years 11 months to test four specific hypotheses on the acquisition of initial fricatives and glides in English, based on the assumptions that perception precedes production and unmarked precedes marked. Perception data were collected by the Shvachkin-Garnica…

This paper presents an inventory of the features that are necessary to describe vowel systems in the languages of the world. The relationship between the features and then articulatory and acoustic correlates is explored. (Author/NCR)

Examination of the speech of 33 monolingual Spanish-speaking children found that syllable type affected the correct pronunciation of novel words. The different syllable types comprising the novel words could be hierarchized. Performance on syllable type appeared to be an interaction between the structure of the syllable and phonological processes…

Measurement of voice onset time productions associated with three bilabial, three alveolar, and two velar stops in 3- to 7-year-olds and adults indicated that, by five years of age, children have acquired all voicing contrasts; however, not all sounds are produced in an adult-like manner. (Author/CB)

Examines genetic influences on language by assessing 158 preschool twins on vocabulary comprehension, semantic knowledge, morphology, syntax, and articulation. Vocabulary comprehension was significantly influenced by heredity, whereas performance skills were influenced by between-family environmental factors. (Author/AS)

A study examined patterns in production of Spanish voiced and voiceless stop consonants by native English speakers, focusing on the interaction between two acoustic cues of stops: voice closure interval and voice onset time (VOT). The study investigated whether learners acquire the appropriate phonetic categories with regard to these stops and if…