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Memorability of photographs in subjective cognitive decline and mild cognitive impairment: Implications for cognitive assessment

Bainbridge, WA; Berron, D; Schütze, H; Cardenas-Blanco, A; Metzger, C; Dobisch, L; Bittner, D; ... Düzel, E; + view all (2019) Memorability of photographs in subjective cognitive decline and mild cognitive impairment: Implications for cognitive assessment. Alzheimer's and Dementia: Diagnosis, Assessment and Disease Monitoring , 11 pp. 610-618. 10.1016/j.dadm.2019.07.005. (In press). Green open access

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Abstract

Introduction: Impaired long-term memory is a defining feature of mild cognitive impairment (MCI). We tested whether this impairment is item specific, limited to some memoranda, whereas some remain consistently memorable. Methods: We conducted item-based analyses of long-term visual recognition memory. Three hundred ninety-four participants (healthy controls, subjective cognitive decline [SCD], and MCI) in the multicentric DZNE-Longitudinal Cognitive Impairment and Dementia Study (DELCODE) were tested with images from a pool of 835 photographs. Results: We observed consistent memorability for images in healthy controls, SCD, and MCI, predictable by a neural network trained on another healthy sample. Looking at memorability differences between groups, we identified images that could successfully categorize group membership with higher success and a substantial image reduction than the original image set. Discussion: Individuals with SCD and MCI show consistent memorability for specific items, while other items show significant diagnosticity. Certain stimulus features could optimize diagnostic assessment, while others could support memory.

Type: Article
Title: Memorability of photographs in subjective cognitive decline and mild cognitive impairment: Implications for cognitive assessment
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.dadm.2019.07.005
Publisher version: https://doi.org/10.1016/j.dadm.2019.07.005
Language: English
Additional information: This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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 Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Institute of Cognitive Neuroscience
URI: https://discovery.ucl.ac.uk/id/eprint/10081836
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