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  • Title: The role of age and inhibitory efficiency in working memory processing and storage components.
    Author: Blair M, Vadaga KK, Shuchat J, Li KZ.
    Journal: Q J Exp Psychol (Hove); 2011 Jun; 64(6):1157-72. PubMed ID: 21298594.
    Abstract:
    In this study, we examined the extent to which inhibitory efficiency accounted for age-related decline in the processing and storage components of working memory. Older and younger adults performed a sequential task, which served as an index of deletion-type inhibition (the ability to suppress no-longer-relevant information). The reading span task was used to measure working memory components by examining processing accuracy, processing time, and end-word recall of sentences presented. Reduced inhibitory efficiency, which was poorer in older adults, predicted age-related decline in recall, over and above the effects of processing speed. Similar results were observed for processing accuracy, although the age effect in this component was marginal. These results highlight the important role of deletion-type inhibition in explaining age-related decline in working memory performance, particularly in the storage component, and extend previous research by examining this relationship at a componential level.
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