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Age-Related Deficits in Memory Encoding and Retrieval in Word List Free Recall

Cadar, D; Usher, M; Davelaar, EJ; (2018) Age-Related Deficits in Memory Encoding and Retrieval in Word List Free Recall. Brain Sciences , 8 (12) , Article 211. 10.3390/brainsci8120211. Green open access

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Abstract

Although ageing is known to affect memory, the precise nature of its effect on retrieval and encoding processes is not well understood. Here, we examine the effect of ageing on the free recall of word lists, in which the semantic structure of word sequences was manipulated from unrelated words to pairs of associated words with various separations (between pair members) within the sequence. We find that ageing is associated with reduced total recall, especially for sequences with associated words. Furthermore, we find that the degree of semantic clustering (controlled for chance clustering) shows an age effect and that it interacts with the distance between the words within a pair. The results are consistent with the view that age effects in memory are mediated both by retrieval and by encoding processes associated with frontal control and working memory.

Type: Article
Title: Age-Related Deficits in Memory Encoding and Retrieval in Word List Free Recall
Open access status: An open access version is available from UCL Discovery
DOI: 10.3390/brainsci8120211
Publisher version: https://doi.org/10.3390/brainsci8120211
Language: English
Additional information: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
Keywords: ageing; memory encoding; memory retrieval; free recall; semantic clustering
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health > Behavioural Science and Health
URI: https://discovery.ucl.ac.uk/id/eprint/10063723
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