[Brain plasticity for language in children and adolescents]. / Plasticidad cerebral para el lenguaje en el nino y el adolescente.
Rev Neurol
; 54 Suppl 1: S127-30, 2012 Feb 29.
Article
em Es
| MEDLINE
| ID: mdl-22374764
ABSTRACT
INTRODUCTION:
Plasticity makes possible adaptative modelling of the nervous system to experiences i.e. learning and development.AIM:
To review current literature on clinical long term evolution and functional magnetic resonance imaging (fMRI) features of brain remodelling after focal stroke in left perisylvian regions involved in basic language processing during infancy and childhood. DEVELOPMENT Each of the main neurocognitive subsystems develops with different timing, so altered plasticity and vulnerability are diverse, according with age at insult and its topography. Genetic programming makes human brain capable for installing basic formal linguistic abilities on an associative perisylvian subsystem, highly specialised. A focal lesion of this region leads to remodelling phenomena by disinhibition of contralateral frontal and perisylvian structures and by a more or less efficacious activation of neighboring homolateral cortex, as it has been shown by fMRI studies and DTI tractography. As a result, very early local stroke to language areas is generally well compensated in terms of linguistic behaviour. Meanwhile acquired aphasias into middle and late childhood, even if they have a better prognosis than in adults, they fail to resume without lexical access defaults and/or difficulties in written language.CONCLUSION:
Brain plasticity can promote restoration and further development of language following a stroke in left peri-sylvian areas, specially when lesion occurs at perinatal to middle childhood.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Psicologia da Criança
/
Psicologia do Adolescente
/
Idioma
/
Transtornos da Linguagem
/
Plasticidade Neuronal
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
Limite:
Adolescent
/
Child
/
Child, preschool
/
Female
/
Humans
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Infant
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Male
/
Newborn
Idioma:
Es
Revista:
Rev Neurol
Ano de publicação:
2012
Tipo de documento:
Article