Rectification and non-linear pre-processing of EMG signals for cortico-muscular analysis.

  title={Rectification and non-linear pre-processing of EMG signals for cortico-muscular analysis.},
  author={Lance Jonathan Myers and M T Lowery and M. J. O'Malley and Christopher L. Vaughan and Conor Heneghan and Alan St Clair Gibson and Yolande X. R. Harley and Ramaswamy Sreenivasan},
  journal={Journal of neuroscience methods},
  volume={124 2},
Rectification of the electromyographic (EMG) signal is a commonly used pre-processing procedure that allows detection of significant coherence between EMG and measured cortical signals. However, despite its accepted and wide-spread use, no detailed analysis has been presented to offer insight into the precise function of rectification. We begin this paper with arguments based on single motor unit action potential (AP) trains to demonstrate that rectification effectively enhances the firing rate… CONTINUE READING

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