Intracranial detection of movement-related potentials for operation of a direct brain interface

Author

Levine, Simon P. ; Huggins, Jane E. ; BeMent, S.L. ; Schuh, Lori A. ; Kushwaha, Ramesh K. ; Ross, Donald A. ; Rohde, Mitchell M.

Author_Institution

Phys. Med. & Rehabilitation, Michigan Univ., Ann Arbor, MI, USA

Volume

2

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

512

Abstract

A direct brain interface for control of assistive technologies is being developed based on intracranial detection of movement-related potentials. Subjects for this research are patients who have electrodes implanted for monitoring purposes prior to epilepsy surgery. Triggered averaging is used to create event-related potential (ERP) templates related to specific movements. These templates are then cross-correlated with the electrocorticogram (ECoG) to identify individual ERPs. Results from 7 subjects with varying electrode placements have yielded detection accuracies as high as 92%, 100%, and 89% with false-positive identifications of 2%, 4%, and 2% respectively

Keywords

biocontrol; correlation methods; electroencephalography; electromyography; handicapped aids; medical signal processing; command signals; control of assistive technologies; cross-correlated; direct brain interface operation; electrocorticogram; event-related potential templates; false-positive identifications; human tongue protrusion; intracranial detection; movement-related potentials; triggered averaging; Brain; Computer science; Electrical capacitance tomography; Electrodes; Enterprise resource planning; Epilepsy; Hospitals; Surgery; Switches; Tongue;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.651841

Filename

651841