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PhD Candidate at the University of Madeira and Researcher at the Madeira Interactive Technologies Institute (M-ITI). Research in Brain-Computer Interfaces, Physiological Computing, Virtual/Augmented Reality and Serious Games for Neurorehabilitation

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Rehab 2014

Two papers will be presented at the REHAB 2014 Workshop in PervasiveHealth'14 - 8th International Conference on Pervasive Computing Technologies for Healthcare that will take place at Oldenburg, Germany, 20 May, 2014.


An Assistive Mobile Platform for Delivering Knowledge of Performance Feedback.


Authors: Davide Neves, Athanasios Vourvopoulos, Mónica Cameirão, Sergi Bermudez i Badia

ABSTRACT
Upper limb motor deficits caused by stroke have a big impact on a person’s daily activities and independence. One strategy for promoting motor relearning consists on the delivery of meaningful feedback during rehabilitative training. In this paper we describe the development and first evaluation of a system that combines a portable arm orthosis device and a mobile application running on a tablet in order to provide knowledge of performance to stroke patients while performing therapy. Here we present preliminary results and discuss the potential of this technology.



Eye Gaze Patterns after Stroke: Correlates of a VR Action Execution and Observation Task.


Authors: Júlio Alves, Athanasios Vourvopoulos, Alexandre Bernardino, Sergi Bermúdez i Badia

ABSTRACT
The concept of a partially shared neural network between action observation and action execution in healthy participants has been demonstrated through a number of studies. However, little research has been done in this regard utilizing eye movement metrics in rehabilitation contexts. In this study we approach action observation and action execution by means of the combination of a virtual environment and eye tracking technology. Participants consisted of stroke survivors, and were required to perform a simple reach-and-grab and place-and-release task with both their paretic and non-paretic arm. Results showed congruency in gaze metrics between action execution and action observation, for distribution and duration of gaze events. However, significant differences in the total number of fixations, saccades and smooth pursuit segments suggest different underlying mechanisms for execution and observation. We therefore extend the understanding of gaze metrics across these conditions in people with deficits derived from stroke.



Exploring the Human Brain Through Virtual Environment Interaction

BCI - VR BC-VR
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