Evidence map›Paper›PMID 33754406›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2021

Saccade, Pupil, and Blink Responses in Rapid Eye Movement Sleep Behavior Disorder.

Julia E Perkins, Annette Janzen, Felix P Bernhard, Karén Wilhelm, Donald C Brien, Jeff Huang, Brian C Coe, David Vadasz, Geert Mayer, Douglas P Munoz and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2021. 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
2.6field-weighted citation impact, top 8% 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, 32 citations in OpenAlex.

  1. Pooled it
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  12. Chromatic Pupillometry in Isolated Rapid Eye Movement Sleep Behavior Disorder.Movement disorders : official journal of the Movement Disorder Society · 2022
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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

11 authors at 2 institutions in 2 countries.

Julia E PerkinsCentre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada.ORCID 0000-0003-1665-2858
Annette JanzenDepartment of Neurology, Philipps-University, Marburg, Germany.
Felix P BernhardDepartment of Neurology, Philipps-University, Marburg, Germany.
Karén WilhelmDepartment of Neurology, Philipps-University, Marburg, Germany.
Donald C BrienCentre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada.
Jeff HuangCentre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada.
Brian C CoeCentre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada.
David VadaszDepartment of Neurology, Philipps-University, Marburg, Germany.
Geert MayerDepartment of Neurology, Philipps-University, Marburg, Germany.
Douglas P MunozCentre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada.
Wolfgang H OertelDepartment of Neurology, Philipps-University, Marburg, Germany.
Philipps University of Marburg · DEQueen's University · CA

Funding

CIHR MOP-FDN-148418
6 · The paper itself

Abstract

backgroundParkinson's disease (PD) patients exhibit deficits in saccade performance, pupil function, and blink rate. Isolated REM (rapid eye movement) Sleep Behavior Disorder (RBD) is a harbinger to PD making them candidates to investigate for early oculomotor abnormalities as PD biomarkers.

objectivesWe tested whether saccade, pupillary, and blink responses in RBD were similar to PD.

methodsRBD (n = 22), PD (n = 22) patients, and healthy controls (CTRL) (n = 74) were studied with video-based eye-tracking.

resultsRBD patients did not have significantly different saccadic behavior compared to CTRL, but PD patients differed from CTRL and RBD. Both patient groups had significantly lower blink rates, dampened pupil constriction, and dilation responses compared to CTRL.

conclusionRBD and PD patients had altered pupil and blink behavior compared to CTRL. Because RBD saccade parameters were comparable to CTRL, pupil and blink brain areas may be impacted before saccadic control areas, making them potential prodromal PD biomarkers. © 2021 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

Indexed as

Parkinson DiseaseREM Sleep Behavior DisorderBrainHumansPupilSaccadesbiomarkereye movementParkinson's diseaseprodromal Parkinson's disease

Identifiers

PMID33754406
PMCPMC8359943
OpenAlexW3139126691

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.