Term
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Definition
| all vocalizations prior to the first actual words |
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Term
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Definition
| the acquisition of speech sound form and function within the language system. Implies the acquisition of a fundamental sound system intricately connected to the child's overall growth in language. |
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Term
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Definition
| the gradual articulatory mastery of speech sound forms within a given language. |
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Term
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Definition
| lungs are proportionally large for babies, so they have higher subglottal pressure than adults |
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Term
| phonatory and resonatory development |
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Definition
| The larynx and vocal tract of babies are unable to do articulatory tasks. The oral cavity is at first mainly used for sucking and swallowing. The tongue fills the oral cavity leaving no space. The larynx has to develop structurally as well. |
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Term
| Development before the first birthday |
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Definition
Thyroid cartilage enlarges more than cricoid cartilage
Epiglottis becomes larger and more firm
Arytenoid cartilage adapts structurally and functionally
Vocal and ventricular folds lengthen, allowing more freedom for vocal fold vibration. |
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Term
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Definition
0-2 months.
Reflexive crying and vegetative sounds |
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Term
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Definition
Cooing and laughter (2-4 months)
2 months: first smile |
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Term
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Definition
Vocal play (4-6 months)
longer series, prolonged sounds
extreme variations in loudness and pitch |
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Term
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Definition
Canonical babbling (6-10 months)
Canonical = collective term
Reduplicated and nonreduplicated babbling |
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Term
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Definition
| similar strings: CVCVCV ex: mamama, dadada |
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Term
| nonreduplicated (variegated) babbling |
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Definition
| Variation of consonants and vowels with smooth transition. |
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Term
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Definition
Jargon (10-12 months)
Intonation, rhythm, pausing
Eye contact, gestures and intonation patterns resembling statements or questions |
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