CS&D 110 Lecture Notes - Lecture 11: Language Disorder, Dysarthria, Otitis Media
24 Feb 2017
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Document Summary
Newborns initially produce mostly reflexive and vegetative sounds. Crying helps infants become accustomed to air flow across the vocal folds. Gradually gain speech sounds: 2 months: cooing, 3 months: vocalize in response to others, 4-6 months: babbling (consonant vowel (cv) combination) Moves closer to playing around with sounds: phonetically consistent forms (pcfs): words Child has to use that particular word in multiple different circumstances for the same thing. As a general rule: stops, nasals, and glides develop early, fricatives, affricates, and liquids develop later. Children produce first words around 12 months. Phonological processes: patterns of speech sound substitutions or omissions: many a typical part of early speech sound development, most disappear by age 3-4, when assessing, need multiple examples across multiple phonemes to determine if true phonological process. Have to see pattern across different sounds: some common type of phonological processes. Omission of one or more consonants in a cluster (more difficult sound is typically deleted)
