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

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

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

Chen XY, Wolpaw J. Operantly conditioned plasticity and circadian rhythm in rat H-reflex are independent phenomena. Neuroscience letters [Internet]. 1995;195:109?112. http://www.ncbi.nlm.nih.gov/pubmed/7478262