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Prelinguistic Period; Foundations; Reflexive cries, coughs, grunts, burps reflecting physical state; Vegetative grunts and sighs associated with activity and clicks and other noises associated with feeding
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Non-Reflexive/Volitional; produced during comfortable states; Regular and repetitive; back sounds & vowels
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Vocal Play; exploratory phonetic behaviors with repetitive vowel-like elements (raspberries, growling, yelling); extreme variation in loudness and pitch
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Similar strings of consonant vowel productions; Late talkers tend to produce less canonical babbling; Hearing impaired children babble later, with less frequency and tend to babble monosyllables with a majority of glide and glottal consonants; The order babbling sounds are learned are the opposite of the order incorporated into speech
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Child changes consonants and vowels; smooth transitions between vowel and consonant productions; 10 months and older=jargon--sounds like sentences without actual words
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Child begins to use sounds to make a difference in word meanings; typically monosyllabic CV, VC, CVCV; homonymity is present
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Children learn to produce all phonemes, begin putting words together in small sentences with beginnings of grammar and syntax; Linguistic Stage
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Suprasegments, polysyllabic words, and literacy; age of complete mastery--at 7-8 years
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