Computational Method for Continuous Monitoring of Ocular Artifacts in Electroencephalography Data

Yuri Silveira Pereira; Daniel Dargelio Ferrão Luft; Matheus Gularte Tavares; Tadeu Vargas; Samuel dos Santos Cardoso

doi:10.22456/2175-2745.150325

Authors

Yuri Silveira Pereira Universidade Federal de Santa Maria https://orcid.org/0009-0008-9811-1847
Daniel Dargelio Ferrão Luft Universidade Federal de Santa Maria https://orcid.org/0009-0004-4348-1497
Matheus Gularte Tavares Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense
Tadeu Vargas Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense https://orcid.org/0009-0004-2329-9970
Samuel dos Santos Cardoso Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense https://orcid.org/0000-0001-5076-500X

DOI:

https://doi.org/10.22456/2175-2745.150325

Keywords:

EEG, EOG, ocular artifacts, real-time processing, assistive technology

Abstract

This work presents a computational method for detecting ocular artifacts in EEG/EOG signals, focusing on Brain-Computer Interfaces and Assistive Technologies. The system uses an Arduino Nano and AD8232 module for real-time acquisition and processing, implementing an algorithm based on voltage thresholds and signal derivative analysis. In a 10-minute trial, 248 blinks were detected, of which 210 were real and 38 false, with only 6 missed. The method achieved an accuracy of 84.7% and a sensitivity of 97.2%, demonstrating effectiveness in identifying real blinks and potential for EEG pre-processing and Assistive Control applications.

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Author Biographies

Yuri Silveira Pereira, Universidade Federal de Santa Maria

Federal Institute of Education, Science and Technology Sul-rio-grandense (IFSul), Santana do Livramento Campus, Santana do Livramento, Rio Grande do Sul, Brazil; Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil.

Daniel Dargelio Ferrão Luft, Universidade Federal de Santa Maria

Federal Institute of Education, Science and Technology Sul-rio-grandense (IFSul), Santana do Livramento Campus, Santana do Livramento, Rio Grande do Sul, Brazil; Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil.

Matheus Gularte Tavares, Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense

Federal Institute of Education, Science and Technology Sul-rio-grandense (IFSul), Santana do Livramento Campus, Santana do Livramento, Rio Grande do Sul, Brazil.

Tadeu Vargas, Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense

Federal Institute of Education, Science and Technology Sul-rio-grandense (IFSul), Santana do Livramento Campus, Santana do Livramento, Rio Grande do Sul, Brazil.

Samuel dos Santos Cardoso, Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense

Federal Institute of Education, Science and Technology Sul-rio-grandense (IFSul), Santana do Livramento Campus, Santana do Livramento, Rio Grande do Sul, Brazil.

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