bioRxivNeurosciencePreprint
Parallel feedback processing for voluntary control: knowledge of spinal feedback in motor cortex
Hui GuangiD, Joseph Y. NashediD, J. Andrew PruszynskiiD, Hari Teja KalidindiiD, Frédéric CrevecoeuriD, Kevin P. CrossiD, Gunnar BlohmiD, Stephen Harold ScottiD
Abstract
How hierarchical feedback pathways coordinate goal-directed motor corrections remains unknown. We show that systematic increases in spinal reflex responses to applied loads lead to a reciprocal reduction in the neural response in primary motor cortex. We use a neural network model to highlight how knowledge on lower-level feedback processing (i.e. spinal reflexes) can be embedded into a network to generate goal-directed corrections through parallel feedback pathways.
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