Syllabic and Phonetic Structure of Infants' Early Words

Abstract
The syllabic structure, phonetic structure and vowel and consonant composition were studied at 3 age levels: 7 months with 23 subjects, 8 months with 35 subjects, and 9 months with 35 subjects. A high percentage of the words were either monosyllables or disyllables. The vowel sounds varied in relative use at different age levels with the exception of the vowel (a). The labial and post-dental sounds constituted more than 80% of the consonant sounds at each age level. A higher percentage of front and back vowels than of middle vowels were used. Approximately 95% of the words were composed of both vowels and consonants.

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