<?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%">Dowman, R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Spinal stretch reflex and cortical evoked potential amplitudes versus muscle stretch amplitude in the monkey arm.</style></title><secondary-title><style face="normal" font="default" size="100%">Electroencephalography and clinical neurophysiology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">muscle stretch</style></keyword><keyword><style  face="normal" font="default" size="100%">primate</style></keyword><keyword><style  face="normal" font="default" size="100%">Somatosensory Cortex</style></keyword><keyword><style  face="normal" font="default" size="100%">somatosensory evoked potential</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%">1988</style></year><pub-dates><date><style  face="normal" font="default" size="100%">04/1988</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/2450738</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">69</style></volume><pages><style face="normal" font="default" size="100%">394–397</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">While investigating operant conditioning of the primate spinal stretch reflex (SSR), we studied SSR amplitude and cortical somatosensory evoked potential (SEP) amplitude as stretch amplitude changed in the monkey arm. Initial muscle length and background EMG activity remained constant. With change in stretch amplitude (and proportional change in stretch velocity and acceleration), changes in SSR and SEP amplitudes were respectively 0.75 and 0.66 as great. The lesser change in SSR amplitude may reflect saturation of Ia afferents, while that in SEP amplitude may also reflect participation of other peripheral receptors.</style></abstract></record></records></xml>