Open AccessMemorability of photographs in subjective cognitive decline and mild cognitive impairment: Implications for cognitive assessment
Author(s) -
Bainbridge Wilma A.,
Berron David,
Schütze Hartmut,
CardenasBlanco Arturo,
Metzger Coraline,
Dobisch Laura,
Bittner Daniel,
Glanz Wenzel,
Spottke Annika,
Rudolph Janna,
Brosseron Frederic,
Buerger Katharina,
Janowitz Daniel,
Fliessbach Klaus,
Heneka Michael,
Laske Christoph,
Buchmann Martina,
Peters Oliver,
Diesing Dominik,
Li Siyao,
Priller Josef,
Spruth Eike Jakob,
Altenstein Slawek,
Schneider Anja,
Kofler Barbara,
Teipel Stefan,
Kilimann Ingo,
Wiltfang Jens,
Bartels Claudia,
Wolfsgruber Steffen,
Wagner Michael,
Jessen Frank,
Baker Chris I.,
Düzel Emrah
Publication year - 2019
Publication title -
alzheimer's and dementia: diagnosis, assessment and disease monitoring
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.497
H-Index - 37
ISSN - 2352-8729
DOI - 10.1016/j.dadm.2019.07.005
Subject(s) - categorization , dementia , psychology , cognition , cognitive decline , cognitive impairment , set (abstract data type) , stimulus (psychology) , visual memory , audiology , cognitive psychology , medicine , artificial intelligence , psychiatry , disease , computer science , pathology , programming language
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.