Framework for the Classification of Emotions in People With Visual Disabilities Through Brain Signals

Nowadays, the recognition of emotions in people with sensory disabilities still represents a challenge due to the difficulty of generalizing and modeling the set of brain signals. In recent years, the technology that has been used to study a person’s behavior and emotions based on brain signals is t...

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Main Authors: Jesús Leonardo López-Hernández, Israel González-Carrasco, José Luis López-Cuadrado, Belén Ruiz-Mezcua
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-05-01
Series:Frontiers in Neuroinformatics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fninf.2021.642766/full
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author Jesús Leonardo López-Hernández
Israel González-Carrasco
José Luis López-Cuadrado
Belén Ruiz-Mezcua
author_facet Jesús Leonardo López-Hernández
Israel González-Carrasco
José Luis López-Cuadrado
Belén Ruiz-Mezcua
author_sort Jesús Leonardo López-Hernández
collection DOAJ
description Nowadays, the recognition of emotions in people with sensory disabilities still represents a challenge due to the difficulty of generalizing and modeling the set of brain signals. In recent years, the technology that has been used to study a person’s behavior and emotions based on brain signals is the brain–computer interface (BCI). Although previous works have already proposed the classification of emotions in people with sensory disabilities using machine learning techniques, a model of recognition of emotions in people with visual disabilities has not yet been evaluated. Consequently, in this work, the authors present a twofold framework focused on people with visual disabilities. Firstly, auditory stimuli have been used, and a component of acquisition and extraction of brain signals has been defined. Secondly, analysis techniques for the modeling of emotions have been developed, and machine learning models for the classification of emotions have been defined. Based on the results, the algorithm with the best performance in the validation is random forest (RF), with an accuracy of 85 and 88% in the classification for negative and positive emotions, respectively. According to the results, the framework is able to classify positive and negative emotions, but the experimentation performed also shows that the framework performance depends on the number of features in the dataset and the quality of the Electroencephalogram (EEG) signals is a determining factor.
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spelling doaj.art-3baf01539b124acc819d9b89a520a19d2022-12-21T17:13:07ZengFrontiers Media S.A.Frontiers in Neuroinformatics1662-51962021-05-011510.3389/fninf.2021.642766642766Framework for the Classification of Emotions in People With Visual Disabilities Through Brain SignalsJesús Leonardo López-HernándezIsrael González-CarrascoJosé Luis López-CuadradoBelén Ruiz-MezcuaNowadays, the recognition of emotions in people with sensory disabilities still represents a challenge due to the difficulty of generalizing and modeling the set of brain signals. In recent years, the technology that has been used to study a person’s behavior and emotions based on brain signals is the brain–computer interface (BCI). Although previous works have already proposed the classification of emotions in people with sensory disabilities using machine learning techniques, a model of recognition of emotions in people with visual disabilities has not yet been evaluated. Consequently, in this work, the authors present a twofold framework focused on people with visual disabilities. Firstly, auditory stimuli have been used, and a component of acquisition and extraction of brain signals has been defined. Secondly, analysis techniques for the modeling of emotions have been developed, and machine learning models for the classification of emotions have been defined. Based on the results, the algorithm with the best performance in the validation is random forest (RF), with an accuracy of 85 and 88% in the classification for negative and positive emotions, respectively. According to the results, the framework is able to classify positive and negative emotions, but the experimentation performed also shows that the framework performance depends on the number of features in the dataset and the quality of the Electroencephalogram (EEG) signals is a determining factor.https://www.frontiersin.org/articles/10.3389/fninf.2021.642766/fullemotion classification algorithmbrain–computer interfacemachine learningvisual disabilitiesaffective computing
spellingShingle Jesús Leonardo López-Hernández
Israel González-Carrasco
José Luis López-Cuadrado
Belén Ruiz-Mezcua
Framework for the Classification of Emotions in People With Visual Disabilities Through Brain Signals
Frontiers in Neuroinformatics
emotion classification algorithm
brain–computer interface
machine learning
visual disabilities
affective computing
title Framework for the Classification of Emotions in People With Visual Disabilities Through Brain Signals
title_full Framework for the Classification of Emotions in People With Visual Disabilities Through Brain Signals
title_fullStr Framework for the Classification of Emotions in People With Visual Disabilities Through Brain Signals
title_full_unstemmed Framework for the Classification of Emotions in People With Visual Disabilities Through Brain Signals
title_short Framework for the Classification of Emotions in People With Visual Disabilities Through Brain Signals
title_sort framework for the classification of emotions in people with visual disabilities through brain signals
topic emotion classification algorithm
brain–computer interface
machine learning
visual disabilities
affective computing
url https://www.frontiersin.org/articles/10.3389/fninf.2021.642766/full
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AT joseluislopezcuadrado frameworkfortheclassificationofemotionsinpeoplewithvisualdisabilitiesthroughbrainsignals
AT belenruizmezcua frameworkfortheclassificationofemotionsinpeoplewithvisualdisabilitiesthroughbrainsignals