The effects of lesions in the dorsolateral pons on the coordination of swallowing and breathing in awake goats

  • Bonis J
  • Neumueller S
  • Marshall B
 et al. 
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Abstract

The purpose of this retrospective study was to gain insight into the contribution of the dorsolateral pons to the coordination of swallowing and breathing in awake goats. In 4 goats, cannulas were chronically implanted bilaterally through the lateral (LPBN) and medial (MPBN) parabrachial nuclei just dorsal to the Kölliker-Fuse nucleus (KFN). After >2weeks recovery from this surgery, the goats were studied for 51/2h on a control day, and on separate days after receiving 1 and 10μl injections of ibotenic acid (IA) separated by 1week. The frequency of swallows did not change during the control and 1μl IA studies, but after injection of 10μl IA, there was a transient 65% increase in frequency of swallows (P

Author-supplied keywords

  • Dorsolateral pons
  • Phase resetting
  • Respiratory rhythm/pattern generator
  • Swallow pattern generator

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Authors

  • J. M. Bonis

  • S. E. Neumueller

  • B. D. Marshall

  • K. L. Krause

  • B. Qian

  • L. G. Pan

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