Abstract
The working memory construct refers to the capacity to maintain information for a limited time.
Objectives:
To devise stimuli and adapt the 5-back test and to verify the effect of age in normal Brazilian individuals.
Methods:
31 healthy adults (15 young adults and 16 older adults) were evaluated by batteries of auditory stimuli to verify the inter-group differences (age effect) in working memory span, total correct answers and intrusions, and the intra-group effect of type of stimulus.
Results:
There was no intra-group stimulus effect. Individuals from both groups processed di and tri-syllables similarly. No difference between groups (no age effect) was observed for any N-Back parameters: total score, span, number of intrusions, in either di or tri-syllable presentation.
Conclusion:
the processing capacity of 5 elements in phonological working memory was not affected by age.
Key words:
age; working memory; cognition.
Resumo
Memória operacional é um construto que se refere à capacidade de manter a informação acessível para uso por tempo limitado.
Objetivo:
Elaborar estímulos e adaptar o teste N-Back auditivo e verificar o efeito de idade em indivíduos brasileiros normais.
Método:
31 sujeitos adultos (15 adultos jovens e 16 idosos) foram avaliados por baterias de estímulos auditivos para verificar diferenças inter-grupos (efeito de idade) na capacidade da memória operacional, número de respostas corretas e intrusões e também examinar o efeito do tipo de estímulo intra-grupos.
Resultados:
Não houve efeito significante do estímulo intra-grupo. Indivíduos de ambos os grupos processaram de modo similar di e trissílabos. Não houve diferença entre os grupos (efeito de idade) nos parâmetros: escore total, capacidade de memória operacional, número de intrusões tanto na apresentação com dissílabos como trissílabos.
Conclusão:
A capacidade de processar cinco elementos na memória operacional fonológica não foi afetada pela idade.
Palavras-chave:
memória operacional; normalidade; idosos.
Texto completo disponível apenas em PDF.
Full text available only in PDF format.
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Publication Dates
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Publication in this collection
Apr-Jun 2009
History
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Received
30 Apr 2009 -
Accepted
20 May 2009