The Midbrain Periaqueductal Gray Control of Respiration

被引：123
作者：
Subramanian, Hari H. [1 ]
Balnave, Ron J. [2 ]
Holstege, Gert [1 ]
机构：
[1] Univ Groningen, Univ Med Ctr Groningen, Ctr Uroneurol, NL-9700 RB Groningen, Netherlands
[2] Univ Sydney, Sch Med Sci, Lidcombe, NSW 1825, Australia
来源：
JOURNAL OF NEUROSCIENCE | 2008年 / 28卷 / 47期
基金：
英国医学研究理事会;
关键词：
midbrain; emotional breathing control; pattern generation; periaqueductal gray; brainstem; respiration;
D O I：
10.1523/JNEUROSCI.4168-08.2008
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
The midbrain periaqueductal gray (PAG) organizes basic survival behavior, which includes respiration. How the PAG controls respiration is not known. We studied the PAG control of respiration by injecting D,L-homocysteic acid in the PAG in unanesthetized precollicularly decerebrated cats. Injections in different parts of the PAG caused different respiratory effects. Stimulation in the dorsomedial PAG induced slow and deep breathing and dyspnea. Stimulation in the dorsolateral PAG resulted in active breathing and tachypnea consistent with the respiratory changes during fright and flight. Stimulation in the medial part of lateral PAG caused inspiratory apneusis. Stimulation in lateral parts of the lateral and ventrolateral PAG produced respiratory changes associated with vocalization (mews, alternating mews and hisses, or hisses). D,L-Homocysteic acid injections in the caudal ventrolateral PAG induced irregular breathing. These results demonstrate that the PAG exerts a strong influence on respiration, suggesting that it serves as the behavioral modulator of breathing.
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收藏
页码：12274 / 12283
页数：10
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