Development of Lingual Displacement Independence at Babbling Stage

Mélanie Canault (1, 2) , Rafael Laboissière (3, 4) , Pascal Perrier (1) , Rudolph Sock (2)

1 GIPSA-AABC - GIPSA - Acoustique, Aéroacoustique, Biomécanique et Contrôle
2 IPS - Institut de Phonétique de Strasbourg E.A. 3403
3 IMPNSC - Max Planck Institute for Human Cognitive and Brain Sciences [Leipzig]
4 Espace et action

In this study, we recorded jaw movements and the acoustic signal of 15 babies of 8 to 12 months of age during babbling in order to assess the hypothesis whereby tongue gestures would be more independent from mandibular ones with age. Results corroborate our expectations. We have shown that increase in the amplitude of tongue gestures in the anterior/posterior dimension, in relation to vertical jaw movement, is noticeable in older babies. This reveals emergence of articulatory control in babies throughout the babbling stage.

Keywords: Speech motor control; Speech acquisition; Babbling

Domains: Linguistics; Neuroscience; Linguistics

Mélanie Canault, Rafael Laboissière, Pascal Perrier, Rudolph Sock. Development of Lingual Displacement Independence at Babbling Stage. ISSP 2008 - 8th International Seminar on Speech Production, Dec 2008, Strasbourg, France. pp.177-180. ⟨hal-00370718⟩