Evidence map›Paper›PMID 34577505›Full record

ArticleSensors (Basel, Switzerland)2021

EEG Mental Stress Assessment Using Hybrid Multi-Domain Feature Sets of Functional Connectivity Network and Time-Frequency Features.

Ala Hag, Dini Handayani, Thulasyammal Pillai, Teddy Mantoro, Mun Hou Kit, Fares Al-Shargie

Abstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 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
–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

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

  1. Pooled it
  2. Article
  3. Machine-learning methods for epilepsy diagnosis and therapeutic prevention: advances, setbacks, and opportunities.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Review
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  10. EEG Signal Processing for Biomedical Applications.Sensors (Basel, Switzerland) · 2022
    Article
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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

6 authors.

Ala HagSchool of Computer Science & Engineering, Taylor's University, Jalan Taylors, Subang Jaya 47500, Malaysia.ORCID 0000-0003-3221-0371
Dini HandayaniSchool of Computer Science & Engineering, Taylor's University, Jalan Taylors, Subang Jaya 47500, Malaysia.
Thulasyammal PillaiSchool of Computer Science & Engineering, Taylor's University, Jalan Taylors, Subang Jaya 47500, Malaysia.
Teddy MantoroFaculty of Engineering and Technology, Sampoerna University, Jakarta 12780, Indonesia.
Mun Hou KitDepartment of Mechatronic and Biomedical Engineering, Universiti Tunku Abdul Rahman, Bandar Sungai Long, Kajang 43000, Malaysia.ORCID 0000-0002-9885-3882
Fares Al-ShargieDepartment of Electrical Engineering, American University of Sharjah, Sharjah 26666, United Arab Emirates.ORCID 0000-0002-5792-8032

Funding

Fundamental Research Grant Scheme (FRGS) funded by the Ministry of Higher Education Malaysia FRGS/1/2019/ICT02/TAYLOR/03/1
6 · The paper itself

Abstract

Exposure to mental stress for long period leads to serious accidents and health problems. To avoid negative consequences on health and safety, it is very important to detect mental stress at its early stages, i.e., when it is still limited to acute or episodic stress. In this study, we developed an experimental protocol to induce two different levels of stress by utilizing a mental arithmetic task with time pressure and negative feedback as the stressors. We assessed the levels of stress on 22 healthy subjects using frontal electroencephalogram (EEG) signals, salivary alpha-amylase level (AAL), and multiple machine learning (ML) classifiers. The EEG signals were analyzed using a fusion of functional connectivity networks estimated by the Phase Locking Value (PLV) and temporal and spectral domain features. A total of 210 different features were extracted from all domains. Only the optimum multi-domain features were used for classification. We then quantified stress levels using statistical analysis and seven ML classifiers. Our result showed that the AAL level was significantly increased (

Indexed as

ElectroencephalographySupport Vector MachineHumansMachine LearningStress, Psychologicalelectroencephalographyfeature extractionfunctional connectivity networkmachine learningmental stresstime-frequency features

Identifiers

PMID34577505
PMCPMC8473213

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.