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Phase 1: Phonation Period/Birth to 2 months
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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Phase 1
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Phase1:Cooing & Laughter/2-4 months
Non-Reflexive/Volitional; produced during comfortable states; Regular and repetitive; back sounds & vowels -
Phase 1:Expansion/4-6 months
Vocal Play; exploratory phonetic behaviors with repetitive vowel-like elements (raspberries, growling, yelling); extreme variation in loudness and pitch -
Phase 1:Canonical Babbling/7-10 months
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 -
Phase 1:Variegated Babbling/11-12 months
Child changes consonants and vowels; smooth transitions between vowel and consonant productions; 10 months and older=jargon--sounds like sentences without actual words -
Phase 2:Transition from Sounds (Babbling) to Words/~1-2 years
Child begins to use sounds to make a difference in word meanings; typically monosyllabic CV, VC, CVCV; homonymity is present -
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Phase 2: Transition
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Phase 3:Growth of the Inventory/2-5 years old
Children learn to produce all phonemes, begin putting words together in small sentences with beginnings of grammar and syntax; Linguistic Stage -
Period: to
Phase 3: Growth
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Phase 4: Mastery of Speech and Literacy/5+years
Suprasegments, polysyllabic words, and literacy; age of complete mastery--at 7-8 years -
Period: to
Phase 4:Mastery
