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Classifying sensory patterns and their effects on locomotion and tremor
Canadian Journal of Physiology and Pharmacology
|July 1, 1981
Summary
Sensory nerve activity patterns during locomotion influence neural oscillations. Understanding these sensory inputs helps analyze and predict effects on movement control and conditions like essential tremor.
Area of Science:
- Neuroscience
- Biophysics
- Motor Control
Background:
- Peripheral nerves generate sensory activity patterns during unrestrained behaviors like locomotion.
- Sensory input variations are crucial for modulating ongoing neural oscillations.
- Altered sensory input can affect oscillation phase or produce transient reflex effects.
Purpose of the Study:
- To describe methods for analyzing peripheral nerve sensory activity patterns during unrestrained behavior.
- To categorize the interactions between sensory actions and neural oscillations.
Main Methods:
- Analysis of sensory activity patterns in peripheral nerves during locomotion.
- Utilizing a model of the peripheral neuromuscular system and its central connections.
Main Results:
- Locomotion typically shows two bursts of sensory activity per step cycle in ankle extensor and flexor nerves.
- Four categories of sensory actions on neural oscillations are proposed: modulation, resetting, repatterning, and gating.
Conclusions:
- Sensory input plays a significant role in modulating and altering neural oscillations.
- The proposed categorization provides a framework for analyzing sensory influences on neural oscillations in various contexts, including movement disorders.