Between-session time course of sucrose taking on the progressive ratio (PR) schedule of reinforcement following acute EE. After sucrose PR self-administration training, rats either remained single-housed (CON), or were placed into EE overnight (EE). Testing was for up to 3 h/day for the next seven days. * indicates significant difference from CON, P < .05. Figure adapted with permission from “Examining persistence of acute environmental enrichment-induced anti-sucrose craving effects in rats” by J.W. Grimm, J. Hyde, E. Glueck, K. North, D. Ginder, K. Jiganti, M. Hopkins, F. Sauter, D. MacDougall, and D. Hovander, 2019, Appetite, 139, p. 55. Copyright 2019 by Elsevier.