Conflict processing of the frontal cortex and aging change: event-related potentials study / 中国应用生理学杂志
Chinese Journal of Applied Physiology
;
(6): 4-7, 2014.
Artigo
em Chinês
| WPRIM
| ID: wpr-235310
ABSTRACT
<p><b>OBJECTIVE</b>To explore the working mechanism and age-related change of the conflict processing system of the frontal cortex.</p><p><b>METHODS</b>Fifteen normal elderly people and 15 youth were performed a modified Eriksen flanker paradigm, while event-related potential (ERPs), which include 32 systerm electroencephalography, reaction time and correct rate were recorded.</p><p><b>RESULTS</b>The elderly group showed a distinct effect of reaction time and effect of conflict in the respond level compared with the youth group. The elderly group had a longer time window of N380 and same amplitude as the youth group. Low resolution brain electromagnetic tomography (LORETA) showed the bilateral temporal lobe and the dorsolateral prefrontal cortex (especially right) were activated in the youth group, while the left temporal lobe, the left dorsolateral prefrontal cortex and left medial frontal gyrus were activated in the elderly group.</p><p><b>CONCLUSION</b>When conflict stimuli existed in the response level, old people showed frontal interference control hypofunction. N380 reflected the activation of the left dorsolateral prefrontal cortex and the left temporal lobe during response selection and executive control processing in older people.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Fisiologia
/
Tempo de Reação
/
Lobo Temporal
/
Envelhecimento
/
Córtex Pré-Frontal
/
Eletroencefalografia
/
Potenciais Evocados
/
Lobo Frontal
Limite:
Adolescente
/
Idoso
/
Humanos
Idioma:
Chinês
Revista:
Chinese Journal of Applied Physiology
Ano de publicação:
2014
Tipo de documento:
Artigo
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