%0 Journal Article
%T Primary motor cortex and fast feedback responses to mechanical perturbations: a primer on what we know now and some suggestions on what we should find out next
%A J. Andrew Pruszynski
%J Frontiers in Integrative Neuroscience
%D 2014
%I Frontiers Media
%R 10.3389/fnint.2014.00072
%X Many researchers have drawn a clear distinction between fast feedback responses to mechanical perturbations (e.g. stretch responses) and voluntary control processes. But this simple distinction is difficult to reconcile with growing evidence that long-latency stretch responses share most of the defining capabilities of voluntary control. My general view ¨C and I believe a growing consensus ¨C is that the functional similarities between long-latency stretch responses and voluntary control processes can be readily understood based on their shared neural circuitry, especially a transcortical pathway through primary motor cortex. Here I provide a very brief and selective account of the human and monkey studies linking a transcortical pathway through primary motor cortex to the generation and functional sophistication of the long-latency stretch response. I then lay out some of the notable issues that are ready to be answered.
%K long-latency reflex
%K transcortical pathway
%K Motor Cortex
%K upper-limb
%K modulation
%K Spinal Cord
%K Cerebellum
%K human
%K Primate
%U http://www.frontiersin.org/Journal/10.3389/fnint.2014.00072/abstract