Evidence map›Paper›PMID 35382454›Full record

ArticleEXCLI journal2022

Pupil size as an indicator of cognitive activity in mild Alzheimer's disease.

Mohamad El Haj, Guillaume Chapelet, Ahmed A Moustafa, Claire Boutoleau-Bretonnière

Open access · greenAbstract read
In one paragraph

Article in EXCLI journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Comparative analysis of pupillometry in two scheimpflug-based measurement systems.Documenta ophthalmologica. Advances in ophthalmology · 2025
    Article
  6. Article
  7. Ocular changes as potential biomarkers for early diagnosis of Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. Potential Retinal Biomarkers in Alzheimer's Disease.International journal of molecular sciences · 2023
    Review
  12. Review
  13. Article
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 2 countries.

Mohamad El HajNantes Université, Univ. Angers, Laboratoire de Psychologie des Pays de la Loire (LPPL - EA 4638), F-44000 Nantes, France.
Guillaume ChapeletCHU Nantes, Clinical Gerontology Department, Bd Jacques Monod, F44093, Nantes, France.
Ahmed A MoustafaSchool of Psychology, Faculty of Society and Design, Bond University, Gold Coast, Queensland, Australia.
Claire Boutoleau-BretonnièreCHU Nantes, Inserm CIC04, Département de Neurologie, Centre Mémoire de Ressources et Recherche, Nantes, France.
Centre Hospitalier Universitaire de Nantes · FRBond University · AUInstitut Universitaire de France · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It is well established that pupil activity indexes cognitive processing. For instance, research has consistently demonstrated that the pupil reacts to working memory span task performance. However, little is known about pupil reaction to cognitive processing in Alzheimer's Disease (AD). We thus investigated whether span tasks can modulate pupil size in patients with AD. We invited 24 patients with AD and 24 healthy older adults to perform backward and forward spans, as well as to count aloud in a control condition, while their pupil activity was recorded with eye tracking glasses. In patients with AD, analysis demonstrated larger pupil size during backward spans (

Indexed as

Alzheimer's diseasememorypupilpupillometryworking memory span tasks

Identifiers

PMID35382454
PMCPMC8977451
OpenAlexW4226483222

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.