Developmental changes in neural activity to familiar words and gestures.
Brain Lang
; 101(3): 246-59, 2007 Jun.
Article
em En
| MEDLINE
| ID: mdl-17250885
ABSTRACT
Infants younger than 20 months of age interpret both words and symbolic gestures as object names. Later in development words and gestures take on divergent communicative functions. Here, we examined patterns of brain activity to words and gestures in typically developing infants at 18 and 26 months of age. Event-related potentials (ERPs) were recorded during a match/mismatch task. At 18 months, an N400 mismatch effect was observed for pictures preceded by both words and gestures. At 26 months the N400 effect was limited to words. The results provide the first neurobiological evidence showing developmental changes in semantic processing of gestures.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Percepção da Fala
/
Córtex Cerebral
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Desenvolvimento Infantil
/
Potenciais Evocados
/
Gestos
Tipo de estudo:
Clinical_trials
Limite:
Child, preschool
/
Female
/
Humans
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Infant
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Male
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article