CommentaryCommentary on “Homeostasis of exercise hyperpnea and optimal sensorimotor integration: The internal model paradigm” by Poon et al.
Section snippets
Complexities of ventilation control during exercise
A major problem in understanding the regulation of breathing during exercise is the apparent inconsistency of the existing experimental data from studies, which have aimed at identifying some signal that uniquely reflects metabolic rate. Different experimental protocols have arrived at different conclusions (Casaburi et al., 1977, Eldridge, 1994, Haouzi, 2006). The explanation for this is perplexing. Some experimental designs may favor one type of response over another and none completely
The role of consciousness in the optimization of respiration by internal models
There is considerable evidence that internal models located in the cerebellum, cortex and basal ganglia are involved in regulation of many systems (Kawato, 1999). But if they are not to make erroneous predictions, internal models need to have plasticity so that they can be tuned as internal and external conditions change (Dworkin, 1993).
Mitchell and Babb (2006) have reviewed the considerable evidence for plasticity in respiration during exposure to hypoxia or injury to neural pathways as well
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