Evidence map›Paper›PMID 39151657›Full record

ArticleJournal of neuroscience methods2024

Primate eye tracking with carbon-nanotube-paper-composite based capacitive sensors and machine learning algorithms.

Tianyi Li, Vigneshwar Sakthivelpathi, Zhongjie Qian, Robijanto Soetedjo, Jae-Hyun Chung

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of neuroscience methods, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

5 authors.

Tianyi LiMechanical Engineering, University of Washington, Seattle, WA 98195, USA.
Vigneshwar SakthivelpathiMechanical Engineering, University of Washington, Seattle, WA 98195, USA.
Zhongjie QianMechanical Engineering, University of Washington, Seattle, WA 98195, USA.
Robijanto SoetedjoDepartment of Physiology and Biophysics, University of Washington, Seattle, WA 98195, USA; Washington National Primate Research Center, University of Washington, Seattle, WA 98195, USA.
Jae-Hyun ChungMechanical Engineering, University of Washington, Seattle, WA 98195, USA. Electronic address: jae71@uw.edu.

Funding

Washington National Primate Research CenterP51OD010425 · OD · UNIVERSITY OF WASHINGTON · PI Mari Ostendorf · 2012 to 2026
$201.8M
YILMA SIV VACCINIA VACCINE TRIALP51RR000166 · NCRR · UNIVERSITY OF WASHINGTON · PI DACEY, DENNIS MICHAEL · 1985 to 2011
$161.1M
Saccade motor control: The role of cerebellum in spatial updating of saccadesR01EY028902 · NEI · UNIVERSITY OF WASHINGTON · PI SOETEDJO, ROBIJANTO · 2019 to 2023
$2.3M
Capacitive carbon-nanotube composite eye tracking sensor for non-human primate oculomotor researchR21EY031768 · NEI · UNIVERSITY OF WASHINGTON · PI CHUNG, JAE-HYUN, SOETEDJO, ROBIJANTO · 2020 to 2021
$497k
NCRR NIH HHS P51 RR000166NEI NIH HHS R01 EY028902NEI NIH HHS R21 EY031768NIH HHS P51 OD010425
6 · The paper itself

Abstract

backgroundAccurate real-time eye tracking is crucial in oculomotor system research. While the scleral search coil system is the gold standard, its implantation procedure and bulkiness pose challenges. Camera-based systems are affected by ambient lighting and require high computational and electric power. NEW

methodThis study presents a novel eye tracker using proximity capacitive sensors made of carbon-nanotube-paper-composite (CPC). These sensors detect femtofarad-level capacitance changes caused by primate corneal movement during horizontal and vertical eye rotations. Data processing and machine learning algorithms are evaluated to enhance the accuracy of gaze angle prediction.

resultsThe system performance is benchmarked against the scleral coil during smooth pursuits, saccades tracking, and fixations. The eye tracker demonstrates up to 0.97 correlation with the coil in eye tracking and is capable of estimating gaze angle with a median absolute error as low as 0.30°. COMPARISON: The capacitive eye tracker demonstrates good consistency and accuracy in comparison to the gold-standard scleral search coil method.

conclusionsThis lightweight, non-invasive capacitive eye tracker offers potential as an alternative to traditional coil and camera-based systems in oculomotor research and vision science.

Indexed as

Eye-Tracking TechnologyMachine LearningNanotubes, CarbonAlgorithmsAnimalsEye MovementsMacaca mulattaMaleNanotubes, CarbonCapacitive SensorEye trackingGazeMachine LearningPrimate

Identifiers

PMID39151657
PMCPMC11364525

What OpenQuestion holds

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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.