Fig. 2From: Activation of G protein-coupled estradiol receptor 1 in the dorsolateral striatum enhances motivation for cocaine and drug-induced reinstatement in female but not male ratsDuring weeks 1 and 2 of progressive ratio testing, a breaking point increases across self-administrations session for both sexes (p < 0.0001). b Females have a greater average breaking point across weeks compared to males (p = 0.0267). Data are presented as mean ± SEMBack to article page