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@ARTICLE{Zhunussova:285738,
author = {Zhunussova, Alina and Loane, Clare and Kurt, Elif and
Femminella, Grazia Daniela and Lenzoni, Sabrina and Duckett,
Millie and Callaghan, Martina F and Weiskopf, Nikolaus and
Dolan, Raymond J and Howard, Robert and Düzel, Emrah and
Hämmerer, Dorothea},
title = {{P}upil dilation as a marker of attention/effort in aging
and mild cognitive impairment.},
journal = {Alzheimer's and dementia},
volume = {22},
number = {3},
issn = {1552-5260},
address = {Hoboken, NJ},
publisher = {Wiley},
reportid = {DZNE-2026-00295},
pages = {e71180},
year = {2026},
abstract = {Pupil dilation (PD) can be easily measured and reflects
responses to subjectively salient or cognitively demanding
events. It therefore holds promise as a cognitive marker,
especially for individuals with mild cognitive impairment
(MCI) or other neurodegenerative conditions with restricted
abilities to respond in cognitive assessments.We assessed PD
during two tasks, an oddball task for investigating
attentional allocation and a Simon task, which additionally
allows for investigating cognitive effort in younger adults
(YAs), older adults (OAs), and patients with MCI.PD is a
useful marker for investigating attention and cognitive
effort in MCI, as suggested by elevated PD to salient
stimuli in particular of individuals with better attentional
control in MCI patients, as well as YAs and OAs.Measurement
of PD may serve as an easy-to-administer measure to assess
changes in cognitive function in healthy aging and MCI.},
keywords = {Humans / Cognitive Dysfunction: physiopathology / Cognitive
Dysfunction: diagnosis / Male / Female / Aged / Pupil:
physiology / Attention: physiology / Aging: physiology /
Middle Aged / Neuropsychological Tests / Adult / Young Adult
/ Aged, 80 and over / attentional modulation (Other) /
cognitive effort (Other) / locus coeruleus (Other) / mild
cognitive impairment (Other) / pupil dilation (Other)},
cin = {AG Düzel},
ddc = {610},
cid = {I:(DE-2719)5000006},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:41830112},
doi = {10.1002/alz.71180},
url = {https://pub.dzne.de/record/285738},
}