This study tested the production of 18 Spanish consonants by 120 Mexican-American preschool children (ages 3-5), to determine the age of acquisition of Spanish consonants. Data are provided on percent of correct production of each sound at six different age levels and are graphically illustrated to compare age of acquisition with another study's…

Investigation into age-related differences in production of fricative-vowel syllables with 10 adults and 30 children (ages 3, 5, and 7) found that age-related differences in vocal-tract geometry didn't explain age-related differences in vowel effects on fricative noise; children master intersyllabic gestural organization prior to intrasyllabic…

This study tested the hypothesis that there is a developmental shift in the perceptual weighting of acoustic parameters that results from experience with a native language. Comparison of 17 3-year olds and 16 adults found that age-related differences in auditory sensitivity did not fully account for age-related differences in perceptual weighting…

Spanish-speaking children of Mexican descent living in California were tested on the acquisition of 18 Spanish consonants. The 120 subjects (aged 3 to 5:7 years) were equally divided into eight age groups, and the median ages (50%) and upper age limits (90%) of customary production of each consonant were determined. (Author/JDD)

Prelinguistically deafened children (n=28) with cochlear implants performed imitative and structured spontaneous sampling speech tasks. Results found children who had used implants for at least two years acquired some intelligible speech; children who received implants before five years of age showed greater benefit than later recipients; and…