Abstract
The working memory construct refers to the capacity to maintain information for a limited time.ObjectivesTo devise stimuli and adapt the 5-back test and to verify the effect of age in normal Brazilian individuals.Methods31 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.Conclusionthe processing capacity of 5 elements in phonological working memory was not affected by age.
Highlights
The working memory construct refers to the capacity to maintain information for a limited time
Two groups were formed according to age: Group 1 (G1), between 30–60 years and Group 2 (G2), between 60–75 years
The two groups included subjects aged from 30-45 yrs (G1) and 60-74 yrs (G2)
Summary
Abstract – The working memory construct refers to the capacity to maintain information for a limited time. 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. 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. 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. The measures of performance include reaction time, availability of target item, interference and decay or facilitation, increase in memory load and switch costs.[9,10]
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