Listar por autor "Fernández-Rodríguez, Álvaro"
Mostrando ítems 1-20 de 26
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Brain switch mode: an alternative to drive a brain-controlled wheelchair
To date, different control paradigms of low level navigation have been tested for brain-controlled wheelchairs, mainly divided into continuous or discrete control [1]. However, these paradigms have certain drawbacks such ... -
Brain-computer interface (BCI)-generated speech to control domotic devices
Velasco-Álvarez, Francisco Javier
; Fernández-Rodríguez, Álvaro; Ron-Angevin, Ricardo (Elsevier, 2022-10-14)
A brain-computer interface (BCI) is a type of technology that establishes a communication channel between a user and certain devices in the environment via the brain signals of the user. The UMA-BCI Speller tool allows for ... -
Brain-Computer Interface Control of Smartphone Messaging Applications
Velasco-Álvarez, Francisco Javier; Fernández-Rodríguez, Álvaro; Ron-Angevin, Ricardo (IARIA, 2021-07)
This work-in-progress paper presents an implementation of a Brain-Computer Interface (BCI) system focused on the control of the most common messaging applications of a smartphone: WhatsApp, Telegram, e-mail and Short Message ... -
Brain-Controlled Wheelchair Through Discrimination of Two Mental Tasks
Recently, Brain-Computer Interface (BCI) research has been targeted at the rehabilitation of motor-disabled individuals because it helps to establish a communication and control channel for them. This new channel could ... -
Comparison of Two Paradigms Based on Stimulation with Images in a Spelling Brain–Computer Interface
Ron-Angevin, Ricardo; Fernández-Rodríguez, Álvaro; Dupont, Clara; Maigrot, Jeanne; Meunier, Juliette; Tavard, Hugo; Lespinet-Najib, Véronique; André, Jean-Marc[et al.] (IOAP-MDPI, 2023-01-23)
A P300-based speller can be used to control a home automation system via brain activity. Evaluation of the visual stimuli used in a P300-based speller is a common topic in the field of brain–computer interfaces (BCIs). The ... -
Different effects of using pictures as stimuli in a P300 brain-computer interface under rapid serial visual presentation or row-column paradigm
Fernández-Rodríguez, Álvaro; Medina-Juliá, María Teresa; Velasco-Álvarez, Francisco Javier; Ron-Angevin, Ricardo (Springer Nature, 2021-03-20)
Previous proposals for controlling a P300-based BCI speller have shown an improvement using alternative images instead of letters as target stimuli under a row–column paradigm (RCP). However, the RCP is not suitable for ... -
Effect of Stimulus Size in a Visual ERP-Based BCI under RSVP
Fernández-Rodríguez, Álvaro; Darves-Bornoz, Aube; Velasco-Álvarez, Francisco Javier; Ron-Angevin, Ricardo (MPDI, 2022)
Rapid serial visual presentation (RSVP) is currently one of the most suitable paradigms for use with a visual brain–computer interface based on event-related potentials (ERP-BCI) by patients with a lack of ocular motility. ... -
Effects of spatial stimulus overlap in a visual P300-based brain-computer interface
Fernández-Rodríguez, Álvaro; Medina-Juliá, María Teresa; Velasco-Álvarez, Francisco Javier; Ron-Angevin, Ricardo (Elsevier, 2020-02-18)
The rapid serial visual presentation (RSVP) paradigm seems to be one of the most appropriate for patients using P300-based brain-computer interface applications, since non-ocular movements are required. However, according ... -
Estudio preliminar de la usabilidad de tres tamaños de teclados basados en Interfaces Cerebro-Computador por pacientes con ELA
Medina-Juliá, María Teresa; Fernández-Rodríguez, Álvaro; Velasco-Álvarez, Francisco Javier; Ron-Angevin, Ricardo (2019-07-25)
En referencia a los teclados basados en Interfaces Cerebro Computador que utilizan el biopotencial P300 como señal de control, el tamaño óptimo para personas con discapacidad motora no se ha presentado propiamente. En este ... -
Evaluación de estímulos visuales en una interfaz cerebro-ordenador basada en potenciales relacionados con eventos
Fernández-Rodríguez, Álvaro (UMA Editorial, 2022-01-14)
La presente tesis doctoral fue centrada en el estudio de los estímulos visuales utilizados en el control de una interfaz cerebro-ordenador (brain-computer interface, BCI) basada en los potenciales relacionados con eventos ... -
Evaluation of Different Types of Stimuli in a ERP-Based Brain-Computer Interface Speller under RSVP.
Ron-Angevin, Ricardo; Fernández-Rodríguez, Álvaro; Lespinet-Najib, Véronique; Chamard, Charlotte; Fortune, Maëva; Hardouin, Antoine; Lefevre, Inès; Vacherie, Diane; André, Jean-Marc[et al.] (2023)
Rapid Serial Visual Presentation (RSVP) is currently one of the most suitable gaze-independent paradigms to control a visual brain-computer interface based on event related potentials (ERP-BCI) by patients with a lack of ... -
Evaluation of emotional and neutral pictures as flashing stimuli using a P300 brain-computer interface speller
Fernández-Rodríguez, Álvaro; Velasco-Álvarez, Francisco Javier; Medina-Juliá, María Teresa; Ron-Angevin, Ricardo (IOP Publishing, 2019-09-11)
Previous works have reported that complex emotional and visual stimuli can increase the amplitude of the P300 brain potential. Thus, the aim of the present work is to assess these kinds of images in a P300 brain-computer ... -
Evaluation of flashing stimuli shape and colour heterogeneity using a P300 brain-computer interface speller
Fernández-Rodríguez, Álvaro; Velasco-Álvarez, Francisco Javier; Medina-Juliá, María Teresa; Ron-Angevin, Ricardo (2019-07-17)
Objective: Previous works using a visual P300-based speller have reported an improvement modifying the shape or colour of the presented stimulus. However, the effects of both blended factors have not been yet studied. Thus, ... -
Evaluation of Single-Trial Classification to Control a Visual ERP-BCI under a Situation Awareness Scenario.
Fernández-Rodríguez, Álvaro; Ron-Angevin, Ricardo; Velasco-Álvarez, Francisco Javier; Diaz-Pineda, Jaime; Letouzé, Théodore; André, Jean-Marc[et al.] (MDPI, 2023-05-31)
An event-related potential (ERP)-based brain–computer interface (BCI) can be used to monitor a user’s cognitive state during a surveillance task in a situational awareness context. The present study explores the use of an ... -
Evaluation of visual parameters to control a visual ERP-BCI under single-trial classification
Fernández-Rodríguez, Álvaro; Ron-Angevin, Ricardo; Velasco-Álvarez, Francisco Javier; Diaz-Pineda, Jaime; Letouzé, Théodore; André, Jean-Marc[et al.] (2023)
A brain-computer interface (BCIs) based on event-related potentials (ERPs) is a technology that provides a communication channel between a device and a user through their brain activity. These systems could be used to ... -
Exploring the impact of stimulus transparency in ERP-BCI under RSVP.
Fernández-Rodríguez, Álvaro; Velasco-Álvarez, Francisco Javier; Alvarez, Chloé; Langin, Célia; Letouzé, Théodore; André, Jean-Marc; Ron-Angevin, Ricardo[et al.] (ACM Library Digital, 2024)
Rapid serial visual presentation (RSVP) is currently one of the most suitable paradigms for implementing a visual brain–computer interface based on event-related potentials (ERP-BCI) for patients with limited ocular ... -
Posible efecto de interacción entre el paradigma de presentación y el conjunto de estímulos en un teclado virtual controlado a través de una interfaz cerebro-ordenador basada en P300
Fernández-Rodríguez, Álvaro; Medina-Juliá, María Teresa; Velasco-Álvarez, Francisco Javier; Ron-Angevin, Ricardo (2019-07-25)
Muchos trabajos en spellers basados en señal P300 visual han presentado estímulos novedosos que mejoraron el rendimiento utilizando el paradigma fila-columna (RCP). Sin embargo, la presentación visual serial rápida (RSVP) ... -
Preliminary results using a P300 brain-computer interface speller: a possible interaction effect between presentation paradigm and set of stimuli
Fernández-Rodríguez, Álvaro; Medina-Juliá, María Teresa; Velasco-Álvarez, Francisco Javier; Ron-Angevin, Ricardo (2019-06-18)
Several proposals to improve the performance controlling a P300-based BCI speller have been studied using the standard row-column presentation (RCP) par-adigm. However, this paradigm could not be suitable for those patients ... -
Proposals of Control Paradigms Applied to a Brain-Controlled Wheelchair
Several of the neurological diseases that human beings can result in severe disabilities. In some cases, people who suffer from such deficiencies lose any chance of communication with their environment, being the only ... -
Propuesta de BCI basado en RSVP con número reducido de estímulos usando el modo de escritura T9.
Vizcaíno-Martín, Francisco Javier; Velasco-Álvarez, Francisco Javier; Fernández-Rodríguez, Álvaro; Ron-Angevin, Ricardo (Actas Congreso CASEIB 2023, 2023)
Se propone un sistema de comunicación para personas con severas deficiencias motoras, como pacientes afectados de esclerosis lateral amiotrófica, usando una interfaz cerebro computadora. El sistema se basa en el paradigma ...