APS
2023 APS Annual Convention · 2023
Babble and the Brain: Babble Becomes More Left Lateralised As Babies Gain Articulatory Experience
- Florence Oxley
University of York - Tamar Keren-Portnoy
University of York - Eytan Zweig
University of York
Abstract
Orofacial asymmetry analysis was used to examine the laterality of infants' pre-linguistic orofacial behaviours. Smiles and laughs were right lateralised. Babble showed increasing left laterality, with longer utterances showing stronger laterality than shorter utterances, suggesting increasing hemispheric specialisation for sequential vocalisation. These findings support an Emergentist view of phonological development.
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