Evidence map›Paper›PMID 33617541›Full record

ArticlePloS one2021

Mental fatigue prediction during eye-typing.

Tanya Bafna, Per Bækgaard, John Paulin Hansen

Abstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Mental fatigue in football: methodology and experimental protocol.Frontiers in sports and active living · 2026
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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

3 authors.

Tanya BafnaDepartment of Management, Technology and Economics, Technical University of Denmark, Kongens Lyngby, Capital Region of Denmark, Denmark.ORCID 0000-0002-6607-2643
Per BækgaardDepartment of Applied Mathematics and Computer Science, Technical University of Denmark, Kongens Lyngby, Capital Region of Denmark, Denmark.
John Paulin HansenDepartment of Management, Technology and Economics, Technical University of Denmark, Kongens Lyngby, Capital Region of Denmark, Denmark.ORCID 0000-0001-5594-3645

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mental fatigue is a common problem associated with neurological disorders. Until now, there has not been a method to assess mental fatigue on a continuous scale. Camera-based eye-typing is commonly used for communication by people with severe neurological disorders. We designed a working memory-based eye-typing experiment with 18 healthy participants, and obtained eye-tracking and typing performance data in addition to their subjective scores on perceived effort for every sentence typed and mental fatigue, to create a model of mental fatigue for eye-typing. The features of the model were the eye-based blink frequency, eye height and baseline-related pupil diameter. We predicted subjective ratings of mental fatigue on a six-point Likert scale, using random forest regression, with 22% lower mean absolute error than using simulations. When additionally including task difficulty (i.e. the difficulty of the sentences typed) as a feature, the variance explained by the model increased by 9%. This indicates that task difficulty plays an important role in modelling mental fatigue. The results demonstrate the feasibility of objective and non-intrusive measurement of fatigue on a continuous scale.

Indexed as

Eye-Tracking TechnologyTask Performance and AnalysisAdultBlinkingComputer SimulationFemaleHumansMachine LearningMaleMemory, Short-TermMental FatigueModels, StatisticalPupil

Identifiers

PMID33617541
PMCPMC7899326

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.