Phipps AM, Thompson AK. Operant up-conditioning of the soleus cutaneous reflex to non-noxious stimuli in a person with chronic incomplete spinal cord injury. Clin Neurophysiol. 2024;157:1-3. 

N Hill J, Gupta D, Eftekhar A, Brangaccio JA, Norton JJS, McLeod M, et al.. The Evoked Potential Operant Conditioning System (EPOCS): A Research Tool and an Emerging Therapy for Chronic Neuromuscular Disorders. J Vis Exp. 2022;(186). 

Thompson AK, Wolpaw J. The simplest motor skill: mechanisms and applications of reflex operant conditioning. Exerc Sport Sci Rev [Internet]. 2014;42(2):82-90. http://www.ncbi.nlm.nih.gov/pubmed/24508738