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Updated: Dec 16, 2025

Clinical Practice Protocol of Creative Music Therapy for Preterm Infants and Their Parents in the Neonatal Intensive Care Unit
Published on: January 7, 2020
The vocal repertoire of preterm infants: Characteristics and possible applications
Vanessa André1, Virginie Durier1, Séverine Henry1
1Univ Rennes, Normandie Univ, CNRS, EthoS (Ethologie animale et humaine) - UMR 6552, F-35000, Rennes, France.
Abstract:
We investigated infants' capacities to express themselves orally at very early developmental stages. Most reports focus on crying when in pain or hungry. We evaluated young preterm infants' spontaneous vocal production in non-painful contexts. We identified a vocal repertoire composed of nine types of vocalisations. High-pitched sounds were associated with relaxed postures, implying a positive valence, whereas long low-pitched vocalisations, associated more with grimaces and muscle tensions, appeared to have a more negative valence. Infants' vocalisations were useful indicators of their internal state in two situations (when exposed to clothing constraints and environmental noises).
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