Beyond the gamma band: the role of high-frequency features in movement classification.

Miller, Kai J; Shenoy, Pradeep; den Nijs, Marcel; Sorensen, Larry B; Rao, Rajesh N; Ojemann, Jeffrey G · IEEE Trans Biomed Eng · 2008

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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.

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