Beyond the gamma band: the role of high-frequency features in movement classification.
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.
Miller
Kai J
KJ
Department of Physics, University of Washington, Seattle, WA 98195, USA. kjmiller@u.washington.edu
Shenoy
Pradeep
P
den Nijs
Marcel
M
Sorensen
Larry B
LB
Rao
Rajesh N
RN
Ojemann
Jeffrey G
JG
D001931:Brain Mapping / Q000379:methods*; D004569:Electroencephalography / Q000379:methods*; D019054:Evoked Potentials, Motor / Q000502:physiology*; D006801:Humans; D009044:Motor Cortex / Q000502:physiology*; D009068:Movement / Q000502:physiology*; D012815:Signal Processing, Computer-Assisted; D013647:Task Performance and Analysis