Back to results
US 5,857,979 AGranted
Method for analyzing electroencephalogram using correlation dimension
AssigneeElectronics and Telecommunications Research Institute
InventorsChang-Su Ryu, Seon-Hee Park, Seung-Hwan Kim
Life of this patent
Estimating the term…
Abstract
This invention provides a method for analyzing an electroencephalogram(EEG) using the correlation dimension by which the brain states can be discriminated. The method uses a time-delay determining method necessary for reconstructing vectors from the EEG time series, and a relative ratio of a correlation exponent.
Claims2
A method for analyzing an electroencephalogram (EEG) using a correlation dimension, the method comprising the steps of:
- reconstructing vectors in an embedding dimension by using a time delay from an EEG time series;
- calculating a correlation integral from said vectors in the embedding dimension;
- obtaining correlation exponents from said correlation integral;
- obtaining the relative ratios between said correlation exponents obtained at different brain states for each subject;
- taking an average of said relative ratios over subjects;
- and
- discriminating said different brain states by using said average of relative ratios.
4 more elements
Dependencies are inferred from the claim text.