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


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.

SUBMITTER: Bainbridge WA 

PROVIDER: S-EPMC6732671 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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

Bainbridge Wilma A WA   Berron David D   Schütze Hartmut H   Cardenas-Blanco Arturo A   Metzger Coraline C   Dobisch Laura L   Bittner Daniel D   Glanz Wenzel W   Spottke Annika A   Rudolph Janna J   Brosseron Frederic F   Buerger Katharina K   Janowitz Daniel D   Fliessbach Klaus K   Heneka Michael M   Laske Christoph C   Buchmann Martina M   Peters Oliver O   Diesing Dominik D   Li Siyao S   Priller Josef J   Spruth Eike Jakob EJ   Altenstein Slawek S   Schneider Anja A   Kofler Barbara B   Teipel Stefan S   Kilimann Ingo I   Wiltfang Jens J   Bartels Claudia C   Wolfsgruber Steffen S   Wagner Michael M   Jessen Frank F   Baker Chris I CI   Düzel Emrah E  

Alzheimer's & dementia (Amsterdam, Netherlands) 20190905


<h4>Introduction</h4>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.<h4>Methods</h4>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 (DE  ...[more]

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