Alejandro Clemotte- PhD candidate
- Universidad Politécnica de Madrid
Alejandro Clemotte
- PhD candidate
- Universidad Politécnica de Madrid
About
24
Publications
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Introduction
I'm curious about alternative computer access tools for people with cerebral palsy, with special emphasis on gaze tracking systems and its impact in the cognitive level of the users and also metrics and models for a better description of these users.
Current institution
Additional affiliations
October 2011 - present
Publications
Publications (24)
INTERPLAY is a project that proposes the development of an advanced console that suits the motor and cognitive level of the user. The main objectives of the motor rehabilitation are to reduce disability, increase functional ability and, consequently, promote social participation. Adapted peripherals were specially developed for users with motor imp...
BiMU is a platform for computer access and rehabilitation of the upper limb through virtual reality (VR) games. It adapts to the motor and cognitive level of the user and its main goal is improving the efficiency of traditional therapies: reducing disability, increasing functional ability, and promoting social participation. BiMU’s peripheral consi...
The procedures for evaluating alternative computer access systems are neither rigorous, systematic nor formal. We present a methodology to evaluate the user-computer interaction, based on three metrics, when people with cerebral palsy (CP) use eye- trackers as an alternative access device. We validated the methodology by comparing three commercial...
This article evaluates the performance of individuals with cerebral palsy (CP) using an inertial human–computer interface (HCI) based on head movements and a novel facilitation algorithm which we named MouseField. In total, 17 participants from three centers specialized in CP participated in a series of tests that evaluated rapidity and accuracy in...
This paper presents an experiment to validate a head-mounted inertial interface for human-computer interaction (HCI) developed for people with cerebral palsy (CP). The method is based on Fitts’s law, an empirical model of human motor performance for aimed movements. Head motion is recorded in a series of goal-crossing tasks and a regression model o...
This paper presents a pilot study completed in the framework of the INTERAAC project. The aim of the project is to develop a new human-computer interaction (HCI) solution based on eye-gaze estimation from webcam images for people with motor disorders such as cerebral palsy, neurodegenerative diseases, and spinal cord injury that are otherwise unabl...
Este artículo presenta un estudio preliminar que analiza el rendimiento de usuarios con parálisis cerebral (CP) en el manejo del ordenador a través de una interfaz inercial basada en movimientos de la cabeza y un novedoso algoritmo de facilitación del clic, MouseField. El algoritmo está basado en técnicas de botones expansibles y campos gravitatori...
Abstract Cerebral palsy (CP) is one of the most severe disabilities in childhood and makes
heavy demands on health, educational, and social services as well as on families and
children themselves. The most frequently cited definition of CP is a disorder of posture and
movement due to a defect or lesion in the immature brain.
Los comandos básicos para el control de ordenadores a través de interfaces gráficas son comandos
de alcance a un objeto en pantalla y su selección. El presente documento describe un estudio comparativo a nivel funcional de dos estrategias de selección alternativas, especialmente diseñada para personas con parálisis cerebral: clic por permanencia y...
En este artículo se describe el diseño e implementación de un sistema de control de entorno para usuarios con parálisis cerebral (PC). La plataforma trata de solventar las limitaciones de la domótica actual que, si bien ha demostrado ser una tecnología madura y muy extendida para la población general, apenas se aplica al mundo de la discapacidad. E...
En este artículo se describe el diseño e implementación de un sistema de control de entorno para usuarios con parálisis cerebral (CP). La plataforma trata de solventar las limitaciones de la domótica actual que, si bien ha demostrado ser una tecnología madura y muy extendida para la población general, apenas se aplica al mundo de la discapacidad. E...
This paper analyzes the presence of positive and negative motor signs in people with cerebral palsy (CP). Positive motor signs are those that lead to involuntarily increased frequency or magnitude of muscle activity. Negative motor signs describe insufficient muscle activity or insufficient control of muscle activity. In this paper, a head-mounted...
This document describes a methodology for the measurement of accuracy and precision of a remote eye tracker, the Tobii X2-30, under non ideal condition. The test was performed with 10 people. The results are: 2.46 and 1.91 degrees for the accuracy and precision respectively. The results can be used to establish the target size on the screen.
Los avances tecnológicos permiten mejorar la calidad de vida de las personas. Sin embargo estos progresos no siempre se encuentran al alcance de todos pues quienes presentan limitaciones motrices, auditivas, del habla, etc., no pueden acceder a estos beneficios. En este sentido, el ordenador es una herramienta tecnológica que permite realizar infin...
An algorithm to predict the selection of a target by analyzing the trajectory of a pointer controlled
by an accelerometer is proposed and validated on data acquired with healthy subjects and persons with Cerebral Palsy (CP). The algorithm allows a reduction of 50% of the time required for target selection, with respect to a conventional “dwell” str...
Cerebral palsy (CP) is a disorder that arises in childhood and stays the rest of life. CP affects movement, posture and muscle tone. According ASPACE Confederation CP is a whole person disorder consisting of a permanent but not unchanging disorder of muscle tone, posture and movement due to a non-progressive lesion in the brain before the developme...
No todas las personas tienen la capacidad de interactuar con las interfaces de acceso más comunes como los teclados, pulsadores y de pantallas táctiles. Existen trabajos innovadores que apuntan al desarrollo de interfaces alternativas en respuesta a las necesidades comentadas. Una interfaz alternativa (IA) es una interfaz de entrada que puede ser c...
Some people with cerebral palsy (CP) have difficulty interacting with standard human-computer interfaces (HCI). Several systems have demonstrated to be usable HCI for disabled people.
However, there is a lack of usability when users suffer severe motor disorders, like the case of CP users. This work characterizes cerebral palsy users while they per...
This work presents the issues involved in running TinyOS on the eZ430RF2480 Zigbee compliant platform. TinyOS is a widely used operating system in modern wireless sensor networks, with a flexible and powerful modular system. However, running an operating system on any new target board is always a technical challenge. In order to port TinyOS to a ne...
El trabajo presentado en este artículo tiene como objetivo caracterizar los patrones de movimiento y postura involuntarios de personas con PC discinética. Este análisis será empleado para diseñar una interfaz persona-computador, basada en tecnología inercial, que interpreta los movimientos de la cabeza del usuario y los traduce en movimientos del p...
La parálisis cerebral (PC) es un trastorno que surge en la infancia y se mantiene el resto de la vida. La PC afecta el movimiento, la postura y el tono muscular. Según la Confederación ASPACE la PC es un “trastorno global de la persona consistente en un desorden permanente y no inmutable del tono muscular, la postura y el movimiento, debido a una l...
