Salvy, S. J., Pierce, W. D., Heth, D. C., & Russell, J. C. (2004). Taste avoidance induced by wheel running: effects of backward pairings and robustness of conditioned taste aversion. Physiology & Behavior, 82(2), 303-308. https://doi.org/10.1016/j.physbeh.2004.03.017.