Pupil dilation as a marker of attention/effort in aging and mild cognitive impairment

Alina Zhunussova; Clare Loane; Elif Kurt; Grazia Daniela Femminella; Sabrina Lenzoni; Millie Duckett; Martina F. Callaghan; Nikolaus Weiskopf; R. J. Dolan; RS Howard; Emrah Düzel; Dorothea Hämmerer

doi:10.1002/alz.71180

March 1, 2026Alzheimer s & DementiaOpen Access

Pupil dilation as a marker of attention/effort in aging and mild cognitive impairment

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Key Points

To explore how pupil dilation can reflect cognitive function in individuals with healthy aging and mild cognitive impairment.
Utilized pupil dilation measurement as an assessment tool
Analyzed changes in pupil response to cognitive tasks
Focused on both aging adults and individuals with mild cognitive impairment
Pupil dilation correlates with levels of attention and effort in cognitive tasks
Significant changes in pupil response observed in mild cognitive impairment compared to healthy aging

Implication

Measurement of pupil dilation indicates cognitive function changes in healthy aging and mild cognitive impairment, suggesting a simple assessment tool.

Abstract

Measurement of PD may serve as an easy-to-administer measure to assess changes in cognitive function in healthy aging and MCI.

Discussion

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Cite This Study

Zhunussova et al. (2026) studied this question.

synapsesocial.com/papers/69b79e968166e15b153ac2a5 https://doi.org/10.1002/alz.71180

View Full Paper

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Pupil dilation as a marker of attention/effort in aging and mild cognitive impairment

Key Points

Implication

Abstract

Discussion

Cite This Study

Pupil dilation as a marker of attention/effort in aging and mild cognitive impairment

Key Points

Implication

Abstract

Discussion

Cite This Study

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