Title :
Beyond the Gamma Band: The Role of High-Frequency Features in Movement Classification
Author :
Miller, Kai J. ; Shenoy, Pradeep ; Den Nijs, Marcel ; Sorensen, Larry B. ; Rao, Rajesh P N ; Ojemann, Jeffrey G.
Author_Institution :
Univ. of Washington, Seattle
fDate :
5/1/2008 12:00:00 AM
Abstract :
Electrocorticographic spectral changes during movement show a behavioral inflection in the classic gamma band (30-70 Hz). We quantify this inflection and demonstrate that it limits classification accuracy. We call for the designation of a functionally defined band above it, which we denote the chi-band.
Keywords :
biomechanics; electroencephalography; user interfaces; brain mapping; brain-computer interfaces; classical gamma band; electrocorticographic spectrum; electroencephalography; frequency 30 Hz to 70 Hz; movement classification; Computer science; Electrodes; Electroencephalography; Frequency; Physics; Tongue; Chi ($chi$ ) band; electrocorticographic spectrum; Brain Mapping; Electroencephalography; Evoked Potentials, Motor; Humans; Motor Cortex; Movement; Signal Processing, Computer-Assisted; Task Performance and Analysis;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.2008.918569
