EEG Multipurpose Eye Blink Detector using convolutional neural network

• Autor(a) principal: Iaquinta, Amanda Ferrari
• Data de Publicação: 2021
• Outros Autores: Silva, Ana Carolina de Sousa, Ferraz Júnior, Aldrumont, Toledo, Jessica Monique de, Atzingen, Gustavo Voltani von
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/22712
• topic: Artifact removal techniques; Signal Processing; Eye blink; BCI.; Eliminación de artefacto; Eliminación de artefact; Parpadeo; BCI.; Remoção de artefato; Processamento de sinais; Piscada; BCI.

The electrical signal emitted by the eyes movement produces a very strong artifact on EEG signal due to its close proximity to the sensors and abundance of occurrence. In the context of detecting eye blink artifacts in EEG waveforms for further removal and signal purification, multiple strategies where proposed in the literature. Most commonly applied methods require the use of a large number of electrodes, complex equipment for sampling and processing data. The goal of this work is to create a reliable and user independent algorithm for detecting and removing eye blink in EEG signals using CNN (convolutional neural network). For training and validation, three sets of public EEG data were used. All three sets contain samples obtained while the recruited subjects performed assigned tasks that included blink voluntarily in specific moments, watch a video and read an article. The model used in this study was able to have an embracing understanding of all the features that distinguish a trivial EEG signal from a signal contaminated with eye blink artifacts without being overfitted by specific features that only occurred in the situations when the signals were registered.