Sensitivity to Prosody at 6 Months Predicts Vocabulary at 24 Months

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An infant's sensitivity to prosody at 6 months of age predicts their vocabulary development at 24 months. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Alejandrina Cristià; Amanda Seidl

doi:10.31234/osf.io/9wces_v1

September 11, 2026Open Access

Sensitivity to Prosody at 6 Months Predicts Vocabulary at 24 Months

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Key Points

Investigate whether early sensitivity to speech prosody at 6 months of age predicts vocabulary size and language acquisition outcomes at 24 months.
Assessed infants' perceptual attunement and sensitivity to prosodic speech cues at 6 months of age.
Followed language acquisition longitudinally to evaluate expressive vocabulary outcomes at 24 months.
Sensitivity to prosodic features of speech at 6 months significantly predicted productive vocabulary levels at 24 months.
Early attunement to native language structures within the first year of life was positively linked to the rapid acceleration of sentence and word production by age two.

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Implication

Longitudinal study demonstrates that prosodic sensitivity at six months predicts vocabulary size at 24 months, highlighting early perceptual attunement as a cornerstone of language acquisition.

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Cristià et al. (2026) studied this question.

synapsesocial.com/papers/6aa7b23b0926e14a848b0884 https://doi.org/10.31234/osf.io/9wces_v1

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Sensitivity to Prosody at 6 Months Predicts Vocabulary at 24 Months

Key Points

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Cite This Study

Sensitivity to Prosody at 6 Months Predicts Vocabulary at 24 Months

Key Points

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Implication

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