<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jonathan Wolpaw</style></author><author><style face="normal" font="default" size="100%">O'Keefe, J. A.</style></author><author><style face="normal" font="default" size="100%">Kieffer, V. A.</style></author><author><style face="normal" font="default" size="100%">Sanders, M. G.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Reduced day-to-day variation accompanies adaptive plasticity in the primate spinal stretch reflex.</style></title><secondary-title><style face="normal" font="default" size="100%">Neuroscience letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Learning</style></keyword><keyword><style  face="normal" font="default" size="100%">Memory</style></keyword><keyword><style  face="normal" font="default" size="100%">plasticity</style></keyword><keyword><style  face="normal" font="default" size="100%">primate</style></keyword><keyword><style  face="normal" font="default" size="100%">spinal reflex</style></keyword><keyword><style  face="normal" font="default" size="100%">stretch reflex</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1985</style></year><pub-dates><date><style  face="normal" font="default" size="100%">03/1985</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/3991057</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">54</style></volume><pages><style face="normal" font="default" size="100%">165–171</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Monkeys can change the amplitude of the spinal stretch reflex (SSR), or M1, when reward is made contingent on amplitude. The present study demonstrates that reduced SSR day-to-day variation accompanies such adaptive SSR change. This finding supports the assumption that initial, phase I, SSR change results from contingency-appropriate stabilization of tonic activity in relevant descending spinal cord pathways.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jonathan Wolpaw</style></author><author><style face="normal" font="default" size="100%">Kieffer, V. A.</style></author><author><style face="normal" font="default" size="100%">Seegal, R. F.</style></author><author><style face="normal" font="default" size="100%">Braitman, D. J.</style></author><author><style face="normal" font="default" size="100%">Sanders, M. G.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Adaptive plasticity in the spinal stretch reflex.</style></title><secondary-title><style face="normal" font="default" size="100%">Brain research</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Learning</style></keyword><keyword><style  face="normal" font="default" size="100%">Memory</style></keyword><keyword><style  face="normal" font="default" size="100%">plasticity</style></keyword><keyword><style  face="normal" font="default" size="100%">primate</style></keyword><keyword><style  face="normal" font="default" size="100%">spinal reflex</style></keyword><keyword><style  face="normal" font="default" size="100%">stretch reflex</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1983</style></year><pub-dates><date><style  face="normal" font="default" size="100%">05/1983</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/6860948</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">267</style></volume><pages><style face="normal" font="default" size="100%">196–200</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Monkeys can change the amplitude of the spinal stretch reflex without change in initial alpha motor neuron tone, as measured by EMG, or in initial muscle length. Change is apparent in 5-10 days, continues to develop over weeks, and persists during inactive periods. Spinal stretch reflex change may be a valuable system for studying the neuronal and synaptic bases of an adaptive change in primate CNS function.</style></abstract></record></records></xml>