Assessing the Contribution of Covariance Information to the Electroencephalographic Signals of Brain–Computer Interfaces for Spinal Cord Injury Patients
Journal Title: TecnoLógicas - Year 2019, Vol 22, Issue 46
Abstract
Non-invasive EEG-based motor imagery brain–computer interfaces (miBCIs) promise to effectively restore the motor control of motor-impaired patients with conditions that include Spinal Cord Injury (SCI). Nonetheless, miBCIs should be further researched for this type of patients using low-cost EEG acquisition devices, such as the Emotiv EPOC, for home rehabilitation purposes. In this work, we describe in detail and compare ten miBCI architectures based on covariance information from EEG epochs. The latter were acquired with Emotiv EPOC from three control subjects and two SCI patients in order to decode the close and open hand intentions. Four out of the ten miBCIs use covariance information to create spatial filters; the rest employ covariance as a direct representation of the EEG signals, thus allowing the direct manipulation by Riemannian geometry. We found that, although all the interfaces present an overall accuracy above chance level, the miBCIs that use covariance as a direct representation of the EEG signals together with linear classifiers outperform miBCIs that use covariance for spatial filtering, both in control subjects and SCI. These results suggest the high potential of Riemannian geometry-based miBCIs for the rehabilitation of SCI patients with low-cost EEG acquisition devices.
Authors and Affiliations
Carlos Ferrin-Bolaños, Humberto Loaiza-Correa, Jean Pierre-Díaz, Paulo Vélez-Ángel
Keywords
Related Articles
- EP ID EP675076
- DOI 10.22430/22565337.1392
- Views 115
- Downloads 0
Model of dynamic allocation of storage places in Cross Docking centers
This paper describes the methodology applicable to temporary storage in Cross Docking centers using a mathematical model. This model favors the dynamic allocation of storage places to incoming products in Cross Docking c...
Enhancement of nerve structure segmentation by a correntropy-based pre-image approach
Peripheral Nerve Blocking (PNB) is a commonly used technique forperformingregional anesthesia and managing pain. PNB comprises the administration of anestheticsin the proximity of a nerve. In...
Electric field relaxing electrodes design using particle swarm optimization and finite elements method
In this paper, a methodology for design of electrical field relaxing electrodes is shown. This design methodology is based in an optimization process carried out by particle swarm optimization technique. T...
MindFluctuations: Poetic, Aesthetic and Technical Considerations of a Dance Spectacle Exploring Neural Connections
In this era of co-evolution of humans and computers, we are witnessing a lot of fear that humanity will lose control and autonomy. This is a possibility. Another is the development of symbiotic systems among men and mach...
Integrated generation- transmission expansion planning: a review of the state of the art
In the last decade a great number of research works have approached the power systems planning problem by coordinating in a single optimization problem the generation expansion planning (GEP) and the transmission expansi...