Journal
CURRENT OPINION IN NEUROBIOLOGY
Volume 29, Issue -, Pages 133-141Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.conb.2014.06.016
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Funding
- Swedish Research Council
- Karolinska Institute
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Spinal circuits generate coordinated locomotor movements. These hardwired circuits are supplemented with neuromodulation that provide the necessary flexibility for animals to move smoothly through their environment. This review will highlight some recent insights gained in understanding the functional dynamics and plasticity of the locomotor circuits. First the mechanisms governing the modulation of the speed of locomotion will be discussed. Second, advantages of the modular organization of the locomotor networks with multiple circuits engaged in a task-dependent manner will be examined. Finally, the neuromodulation and the resulting plasticity of the locomotor circuits will be summarized with an emphasis on endocannabinoids and nitric oxide. The intention is to extract general principles of organization and discuss some ontogenetic and phylogenetic divergences.
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