Insular Cortex is Critical for the Perception, Modulation, and Chronification of Pain

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• 作者：Changbo Lu ; Tao Yang ; Huan Zhao ; Ming Zhang ; Fancheng Meng ; Hao Fu…
• 关键词：Insular cortex ; Pain ; Emotion ; Neural network ; Dopamine ; GABA ; Molecular mechanism
• 刊名：Neuroscience Bulletin
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：32
• 期：2
• 页码：191-201
• 全文大小：675 KB
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• 作者单位：Changbo Lu (1)
  Tao Yang (1)
  Huan Zhao (1)
  Ming Zhang (1)
  Fancheng Meng (1)
  Hao Fu (1)
  Yingli Xie (1)
  Hui Xu (1)
  
  1. Department of Neurobiology and Collaborative Innovation Center for Brain Science, School of Basic Medicine, Fourth Military Medical University, Xi’an, 710032, China
  
• 刊物主题：Neurosciences; Human Physiology; Anesthesiology; Anatomy; Neurology; Pain Medicine;
• 出版者：Springer Berlin Heidelberg
• ISSN：1995-8218

文摘

An increasing body of neuroimaging and electrophysiological studies of the brain suggest that the insular cortex (IC) integrates multimodal salient information ranging from sensation to cognitive-affective events to create conscious interoception. Especially with regard to pain experience, the IC has been supposed to participate in both sensory-discriminative and affective-motivational aspects of pain. In this review, we discuss the latest data proposing that subregions of the IC are involved in isolated pain networks: the posterior sensory circuit and the anterior emotional network. Due to abundant connections with other brain areas, the IC is likely to serve as an interface where cross-modal shaping of pain occurs. In chronic pain, however, this mode of emotional awareness and the modulation of pain are disrupted. We highlight some of the molecular mechanisms underlying the changes of the pain modulation system that contribute to the transition from acute to chronic pain in the IC.