Multimodal brain-computer interface communication in disorders of consciousness
© Halder et al; licensee BioMed Central Ltd. 2014
Published: 21 July 2014
Brain-computer interfaces (BCIs) can provide a means of communication for people with severe motor impairments . For people with traumatic or other brain injuries establishing communication has proven to be more problematic . The main challenge is integrating a mechanism to deal with co-occurring disorders of consciousness.
This abstract describes multimodal (auditory, tactile, visual) P300 BCI communication attempts performed with a 42-year-old male who had an intracranial hemorrhage of the cerebellum and brainstem one year prior to the measurements. The participant is paralyzed except for residual eye blinking and movement as well as some movement of the left hand. This residual muscular control is used for communication (termed conventional).
Albeit the fact that the attempts with the brain-computer interface was not successful in establishing free communication, the classified responses were clearly above chance. This illustrates that the user understood the instructions and has the physiological capacities to generate the responses required to operate the system. The fluctuations of vigilance experienced by patients with disorders of consciousness must be taken into account when developing new generations of BCI systems.
Funded by FP7/2007-2013, BackHome project grant agreement number 288566.
- Nijboer F, Sellers EW, Mellinger J, Jordan MA, Matuz T, Furdea A, Halder S, Mochty U, Vaughan TM, et al: A P300-based brain–computer interface for people with amyotrophic lateral sclerosis. Clin Neurophysiol. 2008, 119 (8): 1909-1916. 10.1016/j.clinph.2008.03.034.PubMed CentralView ArticlePubMedGoogle Scholar
- Pokorny C, Klobassa DS, Pichler G, Erlbeck H, Real RG, Kübler A, Lesenfants D, Habbal D, Noirhomme Q, Risetti M, et al: The auditory P300-based single-switch brain-computer interface: Paradigm transition from healthy subjects to minimally conscious patients. Artif Intell Med. 2013, 81-90.Google Scholar
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.