Methylphenidate amplifies long-term plasticity in the hippocampus via noradrenergic mechanisms.
Learn Mem
; 15(8): 580-6, 2008 Aug.
Article
em En
| MEDLINE
| ID: mdl-18685149
ABSTRACT
Methylphenidate treatment is used for Attention Deficit Hyperactivity Disorder and can improve learning and memory. Previously, improvements were considered a by-product of increased attention; however, we hypothesize that methylphenidate directly alters mechanisms underlying learning and memory, and therefore examined its effects on hippocampal long-term potentiation and long-term depression. Methylphenidate enhanced both mechanisms in the absence of presynaptic changes and in a noradrenalin beta-receptor-dependent manner. These findings can explain both the improved learning and memory and decreased learning selectivity found with methylphenidate treatment and constitute the first demonstration of direct actions of methylphenidate on mechanisms implicated in cognition.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Norepinefrina
/
Hipocampo
/
Estimulantes do Sistema Nervoso Central
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Metilfenidato
/
Plasticidade Neuronal
Limite:
Animals
Idioma:
En
Revista:
Learn Mem
Assunto da revista:
NEUROLOGIA
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Reino Unido