Validation of a Low-Cost Electrocardiography (ECG) System for Psychophysiological Research

Background and Objective: The reliability of low-cost mobile systems for recording Electrocardiographic (ECG) data is mostly unknown, posing questions regarding the quality of the recorded data and the validity of the extracted physiological parameters. The present study compared the BITalino toolki...

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Main Authors: Ruth Erna Wagner, Hugo Plácido da Silva, Klaus Gramann
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/13/4485
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author Ruth Erna Wagner
Hugo Plácido da Silva
Klaus Gramann
author_facet Ruth Erna Wagner
Hugo Plácido da Silva
Klaus Gramann
author_sort Ruth Erna Wagner
collection DOAJ
description Background and Objective: The reliability of low-cost mobile systems for recording Electrocardiographic (ECG) data is mostly unknown, posing questions regarding the quality of the recorded data and the validity of the extracted physiological parameters. The present study compared the BITalino toolkit with an established medical-grade ECG system (BrainAmp-ExG). Methods: Participants underwent simultaneous ECG recordings with the two instruments while watching pleasant and unpleasant pictures of the “International Affective Picture System” (IAPS). Common ECG parameters were extracted and compared between the two systems. The Intraclass Correlation Coefficients (ICCs) and the Bland–Altman Limits of Agreement (LoA) method served as criteria for measurement agreement. Results: All but one parameter showed an excellent agreement (>80%) between both devices in the ICC analysis. No criteria for Bland–Altman LoA and bias were found in the literature regarding ECG parameters. Conclusion: The results of the ICC and Bland–Altman methods demonstrate that the BITalino system can be considered as an equivalent recording device for stationary ECG recordings in psychophysiological experiments.
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spelling doaj.art-e63f8502b56c4e19844879b328b590c92023-11-22T02:24:07ZengMDPI AGSensors1424-82202021-06-012113448510.3390/s21134485Validation of a Low-Cost Electrocardiography (ECG) System for Psychophysiological ResearchRuth Erna Wagner0Hugo Plácido da Silva1Klaus Gramann2Chair Biological Psychology and Neuroergonomics, TU Berlin, 10623 Berlin, GermanyIT-Instituto de Telecomunicações, 1049-001 Lisbon, PortugalChair Biological Psychology and Neuroergonomics, TU Berlin, 10623 Berlin, GermanyBackground and Objective: The reliability of low-cost mobile systems for recording Electrocardiographic (ECG) data is mostly unknown, posing questions regarding the quality of the recorded data and the validity of the extracted physiological parameters. The present study compared the BITalino toolkit with an established medical-grade ECG system (BrainAmp-ExG). Methods: Participants underwent simultaneous ECG recordings with the two instruments while watching pleasant and unpleasant pictures of the “International Affective Picture System” (IAPS). Common ECG parameters were extracted and compared between the two systems. The Intraclass Correlation Coefficients (ICCs) and the Bland–Altman Limits of Agreement (LoA) method served as criteria for measurement agreement. Results: All but one parameter showed an excellent agreement (>80%) between both devices in the ICC analysis. No criteria for Bland–Altman LoA and bias were found in the literature regarding ECG parameters. Conclusion: The results of the ICC and Bland–Altman methods demonstrate that the BITalino system can be considered as an equivalent recording device for stationary ECG recordings in psychophysiological experiments.https://www.mdpi.com/1424-8220/21/13/4485BITalinoBrainAmpICCintraclass correlation coefficientBland–Altman method
spellingShingle Ruth Erna Wagner
Hugo Plácido da Silva
Klaus Gramann
Validation of a Low-Cost Electrocardiography (ECG) System for Psychophysiological Research
Sensors
BITalino
BrainAmp
ICC
intraclass correlation coefficient
Bland–Altman method
title Validation of a Low-Cost Electrocardiography (ECG) System for Psychophysiological Research
title_full Validation of a Low-Cost Electrocardiography (ECG) System for Psychophysiological Research
title_fullStr Validation of a Low-Cost Electrocardiography (ECG) System for Psychophysiological Research
title_full_unstemmed Validation of a Low-Cost Electrocardiography (ECG) System for Psychophysiological Research
title_short Validation of a Low-Cost Electrocardiography (ECG) System for Psychophysiological Research
title_sort validation of a low cost electrocardiography ecg system for psychophysiological research
topic BITalino
BrainAmp
ICC
intraclass correlation coefficient
Bland–Altman method
url https://www.mdpi.com/1424-8220/21/13/4485
work_keys_str_mv AT ruthernawagner validationofalowcostelectrocardiographyecgsystemforpsychophysiologicalresearch
AT hugoplacidodasilva validationofalowcostelectrocardiographyecgsystemforpsychophysiologicalresearch
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