Brain Computer Interfaces for Communication in Paralysis: a Clinical-Experimental Approach
Author(s) / Creator(s)
Hinterberger, T.
Nijboer, F.
Kübler, A.
Matuz, T.
Furdea, A.
Mochty, U.
Jordan, M.
Lal, T.N
Hill, J.
Mellinger, J.
Bensch, M.
Tangermann, M.
Widmann, G.
Elger, C.
Rosenstiel, W.
Schölkopf, B.
Birbaumer, N.
Abstract / Description
An overview of different approaches to brain-computer interfaces (BCIs) developed in our laboratory is given. An important clinical application of BCIs is to enable communication or environmental control in severely paralyzed patients. The BCI 'Thought-Translation Device (TTD)' allows verbal communication through the voluntary self-regulation of brain signals (e.g., slow cortical potentials (SCPs)), which is achieved by operant feedback train-ing. Humans' ability to self-regulate their SCPs is used to move a cursor toward a target that contains a selectable letter set. Two different approaches were followed to develop Web browsers that could be controlled with binary brain responses. Implementing more power-ful classification methods including different signal parameters such as oscillatory features improved our BCI considerably. It was also tested on signals with implanted electrodes.
Most BCIs provide the user with a visual feedback interface. Visually impaired patients require an auditory feedback mode. A procedure using auditory (sonified) feedback of multiple EEG parameters was evaluated. Properties of the auditory systems are reported and the results of two experiments with auditory feedback are presented. Clinical data of eight ALS patients demonstrated that all patients were able to acquire efficient brain control of one of the three available BCI systems (SCP, /i-rhythm, and P300), most of them used the SCP-BCI. A controlled comparison of the three systems in a group of ALS patients, however, showed that P300-BCI and the /i-BCI are faster and more easily acquired than SCP-BCI, at least in patients with some rudimentary motor control left. Six patients who started BCI training after entering the completely locked-in state did not achieve reliable communication skills with any BCI system. One completely locked-in patient was able to communicate shortly with a ph-meter, but lost control afterward.
Keyword(s)
Lähmung Langsames Hirnpotenzial Gehirncomputerschnittstelle Lähmung Langsames Hirnpotenzial Gehirncomputerschnittstelle brain-computer interfaces paralyzed patients slow cortical potentials Thought-Translation Device EEG experimentPersistent Identifier
Date of first publication
2007
Is part of
C. Dornhege, J.R. Millán et al. (Hrsg.) Toward Brain-Computer Interfacing. MIT Press, Cambridge, Mass., pp. 43-64
Citation
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Hinterberger_MIT_BCI_Book_Chapter_3.pdfAdobe PDF - 783.95KBMD5: cc5252c1f4ebfc6599c959174ee68461
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There are no other versions of this object.
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Author(s) / Creator(s)Hinterberger, T.
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Author(s) / Creator(s)Nijboer, F.
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Author(s) / Creator(s)Kübler, A.
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Author(s) / Creator(s)Matuz, T.
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Author(s) / Creator(s)Furdea, A.
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Author(s) / Creator(s)Mochty, U.
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Author(s) / Creator(s)Jordan, M.
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Author(s) / Creator(s)Lal, T.N
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Author(s) / Creator(s)Hill, J.
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Author(s) / Creator(s)Mellinger, J.
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Author(s) / Creator(s)Bensch, M.
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Author(s) / Creator(s)Tangermann, M.
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Author(s) / Creator(s)Widmann, G.
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Author(s) / Creator(s)Elger, C.
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Author(s) / Creator(s)Rosenstiel, W.
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Author(s) / Creator(s)Schölkopf, B.
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Author(s) / Creator(s)Birbaumer, N.
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PsychArchives acquisition timestamp2022-11-21T13:54:55Z
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Made available on2008-08-08
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Made available on2016-07-14T06:09:56Z
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Made available on2022-11-21T13:54:55Z
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Date of first publication2007
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Abstract / DescriptionAn overview of different approaches to brain-computer interfaces (BCIs) developed in our laboratory is given. An important clinical application of BCIs is to enable communication or environmental control in severely paralyzed patients. The BCI 'Thought-Translation Device (TTD)' allows verbal communication through the voluntary self-regulation of brain signals (e.g., slow cortical potentials (SCPs)), which is achieved by operant feedback train-ing. Humans' ability to self-regulate their SCPs is used to move a cursor toward a target that contains a selectable letter set. Two different approaches were followed to develop Web browsers that could be controlled with binary brain responses. Implementing more power-ful classification methods including different signal parameters such as oscillatory features improved our BCI considerably. It was also tested on signals with implanted electrodes. Most BCIs provide the user with a visual feedback interface. Visually impaired patients require an auditory feedback mode. A procedure using auditory (sonified) feedback of multiple EEG parameters was evaluated. Properties of the auditory systems are reported and the results of two experiments with auditory feedback are presented. Clinical data of eight ALS patients demonstrated that all patients were able to acquire efficient brain control of one of the three available BCI systems (SCP, /i-rhythm, and P300), most of them used the SCP-BCI. A controlled comparison of the three systems in a group of ALS patients, however, showed that P300-BCI and the /i-BCI are faster and more easily acquired than SCP-BCI, at least in patients with some rudimentary motor control left. Six patients who started BCI training after entering the completely locked-in state did not achieve reliable communication skills with any BCI system. One completely locked-in patient was able to communicate shortly with a ph-meter, but lost control afterward.en
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Publication statusunknown
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Review statusunknown
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ISBN0262042444
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Persistent Identifierhttps://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:291-psydok-21543
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Persistent Identifierhttps://hdl.handle.net/20.500.11780/3611
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Persistent Identifierhttps://doi.org/10.23668/psycharchives.10059
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Language of contenteng
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Is part ofC. Dornhege, J.R. Millán et al. (Hrsg.) Toward Brain-Computer Interfacing. MIT Press, Cambridge, Mass., pp. 43-64
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Keyword(s)Lähmungde
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Keyword(s)Langsames Hirnpotenzialde
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Keyword(s)Gehirncomputerschnittstellede
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Keyword(s)Lähmungde
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Keyword(s)Langsames Hirnpotenzialde
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Keyword(s)Gehirncomputerschnittstellede
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Keyword(s)brain-computer interfacesen
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Keyword(s)paralyzed patientsen
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Keyword(s)slow cortical potentialsen
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Keyword(s)Thought-Translation Deviceen
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Keyword(s)EEGen
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Keyword(s)experimenten
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Dewey Decimal Classification number(s)610
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TitleBrain Computer Interfaces for Communication in Paralysis: a Clinical-Experimental Approachen
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DRO typebookPart
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Visible tag(s)PsyDok