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Effects of Hypocapnia on Spontaneous Burst Activity in the Piriform-Amygdala Complex of Newborn Rat Brain Preparations In Vitro

  • T. Fujii
  • H. Onimaru
  • M. Suganuma
  • I. Homma
Conference paper
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 669)

Abstract

We examined effects of hypocapnia on burst activity in the piriform-amygdala complex and C4 inspiratory activity in limbic-brainstem-spinal cord preparations from 0- to 1-day-old rats. Hypocapnia (2% CO2) increased the burst rate in the piriform-amygdala complex but decreased the C4 inspiratory burst rate. Since hyperventilation induces hypocapnia, and enhanced amygdala activity may be involved in induction of a sense of anxiety, our findings might explain the neuronal mechanism of a vicious circle between hyperventilation and an increased sense of anxiety.

Keywords

Burst Activity Neuronal Mechanism Burst Rate Suction Electrode Hyperventilation Syndrome 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • T. Fujii
    • 1
  • H. Onimaru
    • 1
  • M. Suganuma
    • 1
  • I. Homma
    • 1
  1. 1.Department of PhysiologyShowa University School of MedicineTokyo 142Japan

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