Article (Scientific journals)
A vibrotactile P300-based BCI for consciousness detection and communication
Lugo, Zulay; Rodriguez, Javi; Lechner, Alexander et al.
2014In Clinical EEG and Neuroscience
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Keywords :
brain-computer interface; P300; Event-related potentials; Locked-in syndrome
Abstract :
[en] Brain–computer interface (BCI) has been used for many years for communication in severely disabled patients. BCI based on electrophysiological signals has enabled communication, using auditory or visual stimuli to elicit event-related potentials (ERPs). The aim of this study was to determine whether patients with locked-in syndrome (LIS) could elicit a P300 wave, using a vibrotactile oddball paradigm for establishing somatosensory BCI-based communication. Six chronic LIS patients performed 2electroencephalography (EEG)-based vibrotactile P300 oddball tasks. After a simple mental counting task of the target stimuli, participants were instructed to answer 5 questions by counting the vibration on either the right wrist for “yes” or the left wrist for “no.” All participants were able to elicit a P300 wave using the vibrotactile oddball paradigm BCI task. In the counting task, 4 patients got accuracies of 100% (average above chance). In the communication task, one patient achieved 100% accuracy (average above chance). We have shown the feasibility of eliciting a P300 response using vibrotactile stimulation in patients with LIS. The present study provides evidence that this approach can be used for EEG-based BCI communications in this patient group. This is the first study to prove the feasibility of a BCI based on somatosensory (vibratory) stimulation in a group of braininjured patients. Furthermore, this approach could be used for the detection of consciousness in non-communicating patients due to severe brain injuries.
Research center :
GIGA CRC (Cyclotron Research Center) In vivo Imaging-Aging & Memory - ULiège
Disciplines :
Neurology
Author, co-author :
Lugo, Zulay
Rodriguez, Javi
Lechner, Alexander
Ortner, Rupert
Gantner, Ithabi
Laureys, Steven  ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Noirhomme, Quentin ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Guger, Christoph
Language :
English
Title :
A vibrotactile P300-based BCI for consciousness detection and communication
Publication date :
January 2014
Journal title :
Clinical EEG and Neuroscience
ISSN :
1550-0594
eISSN :
2169-5202
Publisher :
EEG and Clinical Neuroscience Society, United States - California
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
FP7 - 247919 - DECODER - Deployment of Brain-Computer Interfaces for the Detection of Consciousness in Non-Responsive Patients
Funders :
CE - Commission Européenne [BE]
ALIS - Association du Locked-In Syndrome [FR]
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Fonds Léon Fredericq [BE]
JSMF - James S McDonnell Foundation [US-MO] [US-MO]
MSF - Mind Science Foundation [US-TX] [US-TX]
ULiège - University of Liège [BE]
Funding text :
French Speaking Community Concerted Research Action (ARC-06/11-340) and the University and University Hospital of Liège. The funding sources are not liable for any use that may be made of the information contained therein.
Available on ORBi :
since 13 January 2014

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