Henan University of Technology 1 article published in JoVE Behavior A Conditioned Place Preference Protocol for Measuring Incubation of Craving in Rats Yongmei Sun1, Gaowei Chen1,2, Kuikui Zhou1, Yingjie Zhu1 1Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 2Grain College, Henan University of Technology Here, a morphine conditioned place preference (CPP) protocol is described to measure incubation of craving in rats.