Distinct hemispheric specializations for native and non-native languages in one-day-old newborns identified by fNIRS.
Neuropsychologia
; 84: 63-9, 2016 Apr.
Article
em En
| MEDLINE
| ID: mdl-26851309
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.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Psicolinguística
/
Percepção da Fala
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Encéfalo
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Multilinguismo
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Lateralidade Funcional
Tipo de estudo:
Prognostic_studies
Limite:
Female
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Humans
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Male
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Newborn
Idioma:
En
Revista:
Neuropsychologia
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Canadá