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- W2412861923 endingPage "359" @default.
- W2412861923 startingPage "333" @default.
- W2412861923 abstract "Central pattern generators (CPGs) are oscillatory neuronal networks controlling rhythmic motor behaviors such as swimming, walking, and breathing. Multifunctional CPGs are capable of producing multiple patterns of rhythmic activity with different periods. Here, we investigate whether two cat rhythmic motor behaviors, walking and paw-shaking, could be controlled by a single multifunctional CPG. To do this, we have created a parsimonious model of a half-center oscillator composed of two mutually inhibitory neurons. Two basic activity regimes coexist in this model: fast 10 Hz paw-shake regime and a slow 2 Hz walking regime. It is possible to switch from paw-shaking to walking with a short pulse of conductance in one neuron, and it is possible to switch from walking to paw-shaking with a longer pulse of excitatory conductance in both neurons. The paw-shake and walking rhythms generated by the CPG model were used as input to a neuromechanical model of the cat hindlimbs to simulate the corresponding rhythmic behaviors. Simulation results demonstrated that the multifunctional half-center locomotor CPG could produce movement mechanics and muscle activity patterns typical for cat walking or paw-shake responses if synaptic weights in selected spinal circuits were altered during each behavior. We propose that the selection of CPG regimes and spinal circuitry is triggered by sensory input from paw skin afferents." @default.
- W2412861923 created "2016-06-24" @default.
- W2412861923 creator A5015527476 @default.
- W2412861923 creator A5035331365 @default.
- W2412861923 creator A5043643034 @default.
- W2412861923 creator A5047112461 @default.
- W2412861923 creator A5050801212 @default.
- W2412861923 date "2015-12-31" @default.
- W2412861923 modified "2023-09-27" @default.
- W2412861923 title "Control of Cat Walking and Paw-Shake by a Multifunctional Central Pattern Generator" @default.
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