LING 3P61 Study Guide - Final Guide: Down Syndrome, 6 Years, Language Disorder
19 Oct 2016
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Document Summary
Stages of pre vocal development: re exive crying and vegetative sounds. Sounds; vibration and stop/start of air ow, crying, some vowel sounds, vegetative sounds: cooing and laughter. Sounds coos, single long vowel, series of vowels strung together, separated by intakes of breath, back vowels, some velar consonants: vocal play. Sounds; testing vocal apparatus, loud and soft, high and low, bilabial trills, sustained vowels, marginal babbling: babbling- reduplicated. Sequences of identical c-v syllables with adult like timing. Note: even deaf infants babble cannonically: babbling- variegated. Syllable strings with varying consonants and vowels, greater range of consonants and vowels, stress and intonation. Processes underlying vocal development- movement through stages is due to; physical growth, nervous system maturation, experience. Biological maturation hypothesis (babbling re ects biological maturation maturation of a brain based language capacity) and babbling drift hypothesis (babbling differs in speci c ways which re ect the speci c language being acquired.
