Document Detail


An online brain-computer interface using non-flashing visual evoked potentials.
MedLine Citation:
PMID:  20404396     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Not until recently have motion-onset visual evoked potentials (mVEPs) been explored as a modality for brain-computer interface (BCI) applications. In this study, the first online BCI system based on mVEPs is presented, in which selection is discerned by subjects' focused attention to the moving cursor at a target virtual button. An adaptive approach was used to adjust the number of trial presentations according to the participants' online performance. With the EEG signal acquired from only a single channel, an acceptable information transfer rate of 42.1 bits min(-1) was achieved, averaged by 12 subjects. Furthermore, an online application for the Google search system was developed based on this paradigm. The promising results, that all of 12 participants were able to operate the system freely, validate the feasibility of a practical motion-onset VEP-based BCI which could be embedded into computer screen elements, such as menu, button and icon, for various applications.
Authors:
Tao Liu; Leslie Goldberg; Shangkai Gao; Bo Hong
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-04-19
Journal Detail:
Title:  Journal of neural engineering     Volume:  7     ISSN:  1741-2552     ISO Abbreviation:  J Neural Eng     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-05-18     Completed Date:  2010-09-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101217933     Medline TA:  J Neural Eng     Country:  England    
Other Details:
Languages:  eng     Pagination:  036003     Citation Subset:  IM    
Affiliation:
Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, People's Republic of China.
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MeSH Terms
Descriptor/Qualifier:
Adult
Electroencephalography / methods*
Evoked Potentials, Visual / physiology*
Humans
Lighting
Male
Pattern Recognition, Automated / methods*
User-Computer Interface*
Visual Cortex / physiology*
Visual Perception / physiology*
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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