title: Distinct hemispheric specializations for native and non-native languages in one-day-old newborns identified by fNIRS.
abstract: This study assessed whether the neonatal brain recruits different neural networks for native and non-native languages at birth. Twenty-seven one-day-old full-term infants underwent functional near-infrared spectroscopy (fNIRS) recording during linguistic and non-linguistic stimulation. Fourteen newborns listened to linguistic stimuli (native and non-native language stories) and 13 newborns were exposed to non-linguistic conditions (native and non-native stimuli played in reverse). Comparisons between left and right hemisphere oxyhemoglobin (HbO2) concentration changes over the temporal areas revealed clear left hemisphere dominance for native language, whereas non-native stimuli were associated with right hemisphere lateralization. In addition, bilateral cerebral activation was found for non-linguistic stimulus processing. Overall, our findings indicate that from the first day after birth, native language and prosodic features are processed in parallel by distinct neural networks.
authors: Sainte-Justine University Hospital Research Centre, 3175, Chemin de la Côte-Sainte-Catherine, Montréal H3T 1C5, QC, Canada.
authors: Phetsamone
authors: P
authors: Vannasing
authors: Sainte-Justine University Hospital Research Centre, 3175, Chemin de la Côte-Sainte-Catherine, Montréal H3T 1C5, QC, Canada; Centre de Recherche en Neuropsychologie et Cognition (CERNEC), Université de Montréal, CP 6128, succursale Centre-Ville, Montréal H3C 3J7, QC, Canada.
authors: Olivia
authors: O
authors: Florea
authors: Instituto de Neurobiología, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, CP 76230, Juriquilla, Querétaro, Mexico.
authors: Berta
authors: B
authors: González-Frankenberger
authors: Sainte-Justine University Hospital Research Centre, 3175, Chemin de la Côte-Sainte-Catherine, Montréal H3T 1C5, QC, Canada.
authors: Julie
authors: J
authors: Tremblay
authors: Sainte-Justine University Hospital Research Centre, 3175, Chemin de la Côte-Sainte-Catherine, Montréal H3T 1C5, QC, Canada; Centre de Recherche en Neuropsychologie et Cognition (CERNEC), Université de Montréal, CP 6128, succursale Centre-Ville, Montréal H3C 3J7, QC, Canada.
authors: Natacha
authors: N
authors: Paquette
authors: Sainte-Justine University Hospital Research Centre, 3175, Chemin de la Côte-Sainte-Catherine, Montréal H3T 1C5, QC, Canada; Département d'orthophonie, Université du Québec A Trois-Rivières, 3351, boul. des Forges, C.P. 500, Trois-Rivières G9A 5H7, QC, Canada.
authors: Dima
authors: D
authors: Safi
authors: GRAMFC, Neurophysiology Laboratory, Faculty of Medicine, University of Picardie, 3 rue des Louvels, 80036 Amiens, France.
authors: Fabrice
authors: F
authors: Wallois
authors: Sainte-Justine University Hospital Research Centre, 3175, Chemin de la Côte-Sainte-Catherine, Montréal H3T 1C5, QC, Canada; Centre de Recherche en Neuropsychologie et Cognition (CERNEC), Université de Montréal, CP 6128, succursale Centre-Ville, Montréal H3C 3J7, QC, Canada.
authors: Franco
authors: F
authors: Lepore
authors: Sainte-Justine University Hospital Research Centre, 3175, Chemin de la Côte-Sainte-Catherine, Montréal H3T 1C5, QC, Canada; Centre de Recherche en Neuropsychologie et Cognition (CERNEC), Université de Montréal, CP 6128, succursale Centre-Ville, Montréal H3C 3J7, QC, Canada.
authors: Renée
authors: R
authors: Béland
authors: Sainte-Justine University Hospital Research Centre, 3175, Chemin de la Côte-Sainte-Catherine, Montréal H3T 1C5, QC, Canada; Centre de Recherche en Neuropsychologie et Cognition (CERNEC), Université de Montréal, CP 6128, succursale Centre-Ville, Montréal H3C 3J7, QC, Canada.
authors: Maryse
authors: M
authors: Lassonde
authors: Sainte-Justine University Hospital Research Centre, 3175, Chemin de la Côte-Sainte-Catherine, Montréal H3T 1C5, QC, Canada; Centre de Recherche en Neuropsychologie et Cognition (CERNEC), Université de Montréal, CP 6128, succursale Centre-Ville, Montréal H3C 3J7, QC, Canada. Electronic address: anne.gallagher@umontreal.ca.
authors: Anne
authors: A
authors: Gallagher
mesh_terms: D000161:Acoustic Stimulation; D001921:Brain / Q000254:growth & development / Q000502:physiology*; D001931:Brain Mapping; D005260:Female; D007839:Functional Laterality; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D019303:Multilingualism; D009483:Neuropsychological Tests; D011578:Psycholinguistics; D019265:Spectroscopy, Near-Infrared / Q000379:methods; D013067:Speech Perception / Q000502:physiology*
keywords: Foreign language; Language lateralization patterns; Mother tongue; Neonates; Optical imaging