Wolpaw J, Dowman R. Operant conditioning of primate spinal reflexes: effect on cortical SEPs. Electroencephalography and clinical neurophysiology [Internet]. 1988;69:398?401. http://www.ncbi.nlm.nih.gov/pubmed/2450739

Wolpaw J, Dowman R. Spinal stretch reflex and cortical evoked potential amplitudes versus muscle stretch amplitude in the monkey arm. Electroencephalography and clinical neurophysiology [Internet]. 1988;69:394?397. http://www.ncbi.nlm.nih.gov/pubmed/2450738