Listar por autor "Velasco-Álvarez, Francisco"
Mostrando ítems 21-38 de 38
-
Evaluation of switch and continuous navigation paradigms to command a brain-controlled wheelchair
Fernández-Rodríguez, Álvaro
; Velasco-Álvarez, Francisco Javier; Bonnet-Save, Manon; Ron-Angevin, Ricardo (Frontiers Media, 2018-06-28)
A brain-computer interface (BCI) is a technology allowing patients with severe motor dysfunctions to use their electroencephalographic signals to create a communication channel to control devices. The objective of this ... -
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 ... -
Free Virtual Navigation Using Motor Imagery Through an Asynchronous Brain–Computer Interface
Velasco-Álvarez, Francisco Javier; Ron-Angevin, Ricardo; Blanca-Mena, María José (MIT Press, 2010-02)
In this paper, an asynchronous brain-computer interface is presented that enables the control of a wheelchair in virtual environments using only one motor imagery task. The control is achieved through a graphical intentional ... -
P300-Based Brain-Computer Interface Speller: usability evaluation of three speller sizes by severely motor-disabled patients
Medina-Juliá, María Teresa; Fernández-Rodríguez, Álvaro; Velasco-Álvarez, Francisco Javier; Ron-Angevin, Ricardo (Frontiers Media, 2020-10-29)
Brain-computer interface (BCI) spellers allow severe motor-disabled patients to communicate using their brain activity without muscular mobility. Different visual configurations of the widely studied P300-based BCI speller ... -
Performance analysis with different types of visual stimuli in a BCI-Based Speller under an RSVP paradigm
Ron-Angevin, Ricardo; Medina-Juliá, María Teresa; Fernández-Rodríguez, Álvaro; Velasco-Álvarez, Francisco Javier; André, Jean-Marc; Lespinet-Najib, Véronique; García, Liliana[et al.] (Frontiers Media, 2021-01-05)
Brain-Computer Interface (BCI) systems enable an alternative communication channel for severely-motor disabled patients to interact with their environment using no muscular movements. In recent years, the importance of ... -
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 ... -
Review of real brain-controlled wheelchairs
Fernández-Rodríguez, Álvaro; Velasco-Álvarez, Francisco Javier; Ron-Angevin, Ricardo (IOP Publishing, 2016-10-14)
This paper presents a review of the state of the art regarding wheelchairs driven by a brain-computer interface (BCI). Using a brain-controlled wheelchair (BCW), disabled users could handle a wheelchair through their brain ... -
Speech stream segregation to control an ERP-based auditory BCI
Velasco-Álvarez, Francisco Javier; Fernández-Rodríguez, Álvaro; Medina-Juliá, María Teresa; Ron-Angevin, Ricardo (IOP Publishing Ltd, 2021-03-03)
The use of natural sounds in auditory brain-computer interfaces (BCI) has been shown to improve classification results and usability. Some auditory BCIs are based on stream segregation, in which the subjects must attend ... -
Switch mode to control a wheelchair through EEG signals
Ron-Angevin, Ricardo; Velasco-Álvarez, Francisco Javier; Fernández-Rodríguez, Álvaro (Springer, 2016)
This paper presents a switch strategy to control the movement of a Brain-Controlled Wheelchair. After the activation of a Motor Imagery task, an advance movement is started and kept until the same task stop it. This way, ... -
Training in realistic virtual environments: Impact on user performance in a motor imagery-based Brain-Computer-Interface
Silva-Sauer, Leandro; Valero-Aguayo, Luis; Velasco-Álvarez, Francisco Javier; Varona-Moya, Sergio; Ron-Angevin, Ricardo (2015-06-17)
A brain–computer interface (BCI) is a system that enables people to control an external device by means of their brain activity, without the need of performing muscular activity. BCI systems are normally first tested on ... -
UMA-BCI speller, A P300-Based spelling tool
Velasco-Álvarez, Francisco Javier; Sancha-Ros, Salvador; García-Garaluz, Esther; Fernández-Rodríguez, Álvaro; Medina-Juliá, María Teresa; Ron-Angevin, Ricardo[et al.] (Gernot R. Müller-Putz, Jonas C. Ditz, Selina C. Wriessnegger, 2019)
The brain-computer interface research group of the University of Malaga (UMA-BCI) has developed a speller application based on the wellknown P300 potential which can be easily installed, configured and used. The application ... -
UMA-BCI SPELLER: plataforma de comunicación de fácil configuración basada en el BCI2000 P300 SPELLER
Velasco-Álvarez, Francisco Javier; Fernández-Rodríguez, Álvaro; Medina-Juliá, Mayte; Sancha-Ros, Salvador; García-Garaluz, Esther (2018-07-04)
En este trabajo se presenta una nueva herramienta orientada al restablecimiento de la comunicación en pacientes con severas limitaciones motoras. Tomando como base uno de los sistemas BCI multipropósito más extendido ... -
Usability of three software platforms for modifying graphical layout in visual P300-based brain-computer interface
Ron-Angevin, Ricardo; Fernández-Rodríguez, Álvaro; Velasco-Álvarez, Francisco Javier; Lespinet-Najib, Véronique; André, Jean-Marc (Elsevier, 2023-09)
Individuals afflicted by neurodegenerative conditions such as amyotrophic lateral sclerosis may eventually reach a point where they lose the ability to communicate with the outside world through conventional muscular ... -
Use of a psychological learning technique to improve brain-computer interface (BCI) control
Da Silva-Sauer, Leandro; Valero-Aguayo, Luis; Velasco-Álvarez, Francisco Javier; Ron-Angevin, Ricardo (2014-07-22)
A Brain-Computer Interface (BCI) is a system that connects the human brain to a computer, allowing their users to communicate or control external devices using brain signals. Performance of BCI depends on the ability of ...