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Publication . Article . 2020

Fast Periodic Visual Stimulation indexes preserved semantic memory in healthy ageing

Alexander Milton; Alesi Rowland; George Stothart; Phil Clatworthy; Catherine Pennington; Nina Kazanina;
Open Access
Published: 04 Aug 2020 Journal: Scientific Reports, volume 10, issue 1, pages 1-10 (issn: 2045-2322, Copyright policy )
Publisher: Nature Publishing Group
Country: United Kingdom
AbstractBehavioural studies investigating the preservation of semantic memory in healthy ageing have reported mixed findings. One suggested reason for this discrepancy is that the processes underpinning lexical access to semantic knowledge may be sensitive to ageing. It is therefore necessary to assess semantic memory utilising tasks that are not explicitly linguistic. In this study, a fast periodic visual stimulation (FPVS) paradigm coupled with EEG was used to assess the ability of younger and older adults to automatically distinguish between images by their semantic category. Participants were presented with a 6 Hz stream of images drawn from one semantic category except every fifth image (occurring at a rate of 1.2 Hz) which was drawn from an alternate semantic category. For both younger and older adults, results demonstrate successful and comparable semantic categorisation. This was detectable at the individual level for 71% and 72% of older and younger adults, respectively. Given the rapid presentation rate and absence of explicit instruction to categorise images, the task is unlikely to utilise linguistic strategies and suggests the maintenance of semantic memory in healthy ageing. Moreover, this study utilised mobile EEG equipment and short presentation times that would be suitable for practical application outside a research setting.
Subjects by Vocabulary

Library of Congress Subject Headings: lcsh:Medicine lcsh:R lcsh:Science lcsh:Q

Microsoft Academic Graph classification: Psychology Cognitive psychology Task (project management) Research setting Individual level Electroencephalography medicine.diagnostic_test medicine Younger adults Semantic memory Healthy ageing Presentation media_common.quotation_subject media_common


Multidisciplinary, Article, Cognitive ageing, Human behaviour

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Scientific Reports
Article . 2020
Providers: PubMed Central