Initial oh-line evaluations of the LF-ASD brain-computer interface with able-bodied and spinal-cord subjects using imagined voluntary motor potentials

TitleInitial oh-line evaluations of the LF-ASD brain-computer interface with able-bodied and spinal-cord subjects using imagined voluntary motor potentials
Publication TypeJournal Article
Year of Publication2002
AuthorsBirch, G. E., Z. Bozorgzadeh, and S. G. Mason
JournalIEEE Transactions on Neural Systems and Rehabilitation Engineering
Volume10
Pagination219–224
ISSN1534-4320
Abstract

Previous research has focused on developing a brain-controlled switch named the low frequency asynchronous switch design (LF-ASD) that is suitable for intermittent control of devices such as environmental control systems, computers, and neural prostheses. On-line implementations of the LF-ASD have shown promising results in response to actual index finger flexions with able-bodied subjects. This paper. reports the results of initial on-line evaluations of the LF-ASD brain-controlled switch with both able-bodied subjects and subjects with high-levels pinal-cord injuries. This paper has demonstrated that users can activate the LF-ASD switch by imagining movement. In this paper, two able-bodied subjects. were able to control the LF-ASD with imagined voluntary movements with hit (true positive) rates above. 70% and false positive rates below 3% while two subjects with high-level spinal-cord injuries demonstrated hit rates ranging from 45-48% and false positive rates below 1%.

URLhttp://dx.doi.org/10.1109/TNSRE.2002.806839
DOI10.1109/TNSRE.2002.806839

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