Encephalolexianalyzer
Abstract
The encephalolexianalyzer uses digital signal processing techniques on electroencephalograph (EEG) brain waves to determine whether or not someone is thinking about moving, e.g., tapping their fingers, or, alternatively, whether someone is actually moving, e.g., tapping their fingers, or at rest, i.e., not moving and not thinking of moving. The mu waves measured by a pair of electrodes placed over the motor cortex are signal processed to determine the power spectrum. At rest, the peak value of the power spectrum in the 8-13 Hz range is high, while when moving or thinking of moving, the peak value of the power spectrum in the 8-13 Hz range is low. This measured change in signal power spectrum is used to produce a control signal. The encephalolexianalyzer can be used to communicate either directly using Morse code, or via a cursor controlling a remote control; the encephalolexianalyzer can also be used to control other devices. The encephalolexianalyzer will be of great benefit to people with various handicaps and disabilities, and also has enormous commercial potential, as well as being an invaluable tool for studying the brain.
- Inventors:
-
- Livermore, CA
- Castro Valley, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 871985
- Patent Number(s):
- 5840040
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- encephalolexianalyzer; digital; signal; processing; techniques; electroencephalograph; eeg; brain; waves; determine; thinking; moving; tapping; fingers; alternatively; measured; pair; electrodes; placed; motor; cortex; processed; power; spectrum; peak; value; 8-13; hz; range; change; produce; control; communicate; directly; morse; code; via; cursor; controlling; remote; devices; benefit; people; various; handicaps; disabilities; enormous; commercial; potential; invaluable; tool; studying; remote control; brain wave; digital signal; signal processing; control signal; peak value; processing techniques; hz range; signal process; brain waves; processing technique; /600/
Citation Formats
Altschuler, Eric L, and Dowla, Farid U. Encephalolexianalyzer. United States: N. p., 1998.
Web.
Altschuler, Eric L, & Dowla, Farid U. Encephalolexianalyzer. United States.
Altschuler, Eric L, and Dowla, Farid U. Thu .
"Encephalolexianalyzer". United States. https://www.osti.gov/servlets/purl/871985.
@article{osti_871985,
title = {Encephalolexianalyzer},
author = {Altschuler, Eric L and Dowla, Farid U},
abstractNote = {The encephalolexianalyzer uses digital signal processing techniques on electroencephalograph (EEG) brain waves to determine whether or not someone is thinking about moving, e.g., tapping their fingers, or, alternatively, whether someone is actually moving, e.g., tapping their fingers, or at rest, i.e., not moving and not thinking of moving. The mu waves measured by a pair of electrodes placed over the motor cortex are signal processed to determine the power spectrum. At rest, the peak value of the power spectrum in the 8-13 Hz range is high, while when moving or thinking of moving, the peak value of the power spectrum in the 8-13 Hz range is low. This measured change in signal power spectrum is used to produce a control signal. The encephalolexianalyzer can be used to communicate either directly using Morse code, or via a cursor controlling a remote control; the encephalolexianalyzer can also be used to control other devices. The encephalolexianalyzer will be of great benefit to people with various handicaps and disabilities, and also has enormous commercial potential, as well as being an invaluable tool for studying the brain.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}
Works referenced in this record:
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journal, March 1991
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Functional topography of the human mu rhythm
journal, January 1978
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A Hybrid Broad-Band EEG Frequency Analyzer for Use in Long-Term Experiments
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