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Mapping supramedullary pathways involved in cough using functional brain imaging: comparison with pain.
Stuart B Mazzone1, Alice E McGovern, Kendrick Koo
1The University of Queensland, School of Biomedical Sciences, St Lucia, Queensland, Australia. s.mazzone@uq.edu.au
Pulmonary Pharmacology & Therapeutics
|September 23, 2008
Summary
New research explores how higher brain regions control coughing. Functional brain imaging will reveal the neural networks involved, potentially linking cough control to pain processing pathways.
Area of Science:
- Neuroscience
- Respiratory Medicine
- Neuroimaging
Background:
- Supramedullary brain regions are implicated in processing airway sensory information.
- These regions are thought to provide motor control for cough reflexes via brainstem pathways.
- The detailed organization of this cough control circuitry remains largely undescribed.
Purpose of the Study:
- To review the potential of advanced functional brain imaging techniques for elucidating cough control circuitry.
- To discuss the supramedullary brain regions involved in cough reflex modulation.
- To explore potential parallels between cough-related neural networks and those processing other aversive sensory inputs.
Main Methods:
- Review of current literature on functional brain imaging in humans and animals.
- Discussion of neuroimaging techniques applicable to studying cough control.
- Comparative analysis of neural networks for cough and other aversive sensory modalities.
Main Results:
- Functional brain imaging offers unprecedented opportunities to map cough-related supramedullary networks.
- Specific brain regions involved in cough reflex modulation are likely to be identified.
- Similarities are anticipated between cough processing networks and those for pain and other aversive stimuli.
Conclusions:
- Advanced neuroimaging techniques are crucial for understanding the supramedullary control of coughing.
- Elucidating these networks may reveal shared mechanisms with other sensory processing pathways.
- This research opens new avenues for investigating cough suppression and related neurological disorders.
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