Bispectral analysis of complex patterns of sympathetic nerve discharge.

  title={Bispectral analysis of complex patterns of sympathetic nerve discharge.},
  author={G L Gebber and Sheng Zhong and Y Paitel},
  journal={The American journal of physiology},
  volume={271 5 Pt 2},
Bispectral analysis was used to demonstrate quadratic nonlinear coupling (i.e., phase locking) of different frequency components in inferior cardiac sympathetic nerve discharge (SND) of urethan-anesthetized rats. The complex patterns of SND analyzed included mixtures of 1) the cardiac-related and 10-Hz rhythms, 2) the 10-Hz rhythm and irregular 2-to 6-Hz oscillations, and 3) the 10-Hz rhythm and a lower frequency non-cardiac-related rhythm near 4 Hz. In some cases, the bicoherence function… CONTINUE READING

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