Thompson AK, Chen XY, Wolpaw J. Soleus H-reflex operant conditioning changes the H-reflex recruitment curve. Muscle & nerve [Internet]. 2013;47:539?544. http://www.ncbi.nlm.nih.gov/pubmed/23281107

Chen Y, Wang Y, Chen L, Sun C, English AW, Wolpaw J, et al.. H-reflex up-conditioning encourages recovery of EMG activity and H-reflexes after sciatic nerve transection and repair in rats. The Journal of neuroscience : the official journal of the Society for Neuroscience [Internet]. 2010;30:16128?16136. http://www.ncbi.nlm.nih.gov/pubmed/21123559

Chen XY, Chen Y, Wang Y, Thompson A, Carp JS, Segal RL, et al.. Reflex conditioning: a new strategy for improving motor function after spinal cord injury. Annals of the New York Academy of Sciences [Internet]. 2010;1198 Suppl 1:E12?E21. http://www.ncbi.nlm.nih.gov/pubmed/20590534

Thompson AK, Chen XY, Wolpaw J. Acquisition of a simple motor skill: task-dependent adaptation plus long-term change in the human soleus H-reflex. The Journal of neuroscience : the official journal of the Society for Neuroscience [Internet]. 2009;29:5784?5792. http://www.ncbi.nlm.nih.gov/pubmed/19420246

Chen XY, Chen Y, Chen L, Tennissen AM, Wolpaw J. Corticospinal tract transection permanently abolishes H-reflex down-conditioning in rats. Journal of neurotrauma [Internet]. 2006;23:1705?1712. http://www.ncbi.nlm.nih.gov/pubmed/17115915

Chen XY, Carp JS, Chen L, Wolpaw J. Corticospinal tract transection prevents operantly conditioned H-reflex increase in rats. Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale [Internet]. 2002;144:88?94. http://www.ncbi.nlm.nih.gov/pubmed/11976762

Carp JS, Chen XY, Sheikh H, Wolpaw J. Motor unit properties after operant conditioning of rat H-reflex. Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale [Internet]. 2001;140:382?386. http://www.ncbi.nlm.nih.gov/pubmed/11681314

Carp JS, Chen XY, Sheikh H, Wolpaw J. Operant conditioning of rat H-reflex affects motoneuron axonal conduction velocity. Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale [Internet]. 2001;136:269?273. http://www.ncbi.nlm.nih.gov/pubmed/11206290

Wolpaw J, Chen XY. Operant conditioning of rat H-reflex: effects on mean latency and duration. Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale [Internet]. 2001;136:274?279. http://www.ncbi.nlm.nih.gov/pubmed/11206291

Chen XY, Chen L, Wolpaw J. Time course of H-reflex conditioning in the rat. Neuroscience letters [Internet]. 2001;302:85?88. http://www.ncbi.nlm.nih.gov/pubmed/11290393

Chen XY, Wolpaw J, Jakeman LB, Stokes BT. Operant conditioning of H-reflex increase in spinal cord?injured rats. Journal of neurotrauma [Internet]. 1999;16:175?186. http://www.ncbi.nlm.nih.gov/pubmed/10098962

Chen XY, Wolpaw J, Jakeman LB, Stokes BT. Operant conditioning of H-reflex in spinal cord-injured rats. Journal of neurotrauma [Internet]. 1996;13:755?766. http://www.ncbi.nlm.nih.gov/pubmed/9002061

Chen XY, Wolpaw J. Reversal of H-reflex operant conditioning in the rat. Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale [Internet]. 1996;112:58?62. http://www.ncbi.nlm.nih.gov/pubmed/8951407