Figure 1.

Illustration of drinking protocol, experimental paradigm, and animal category distribution. Seven rhesus cohorts participated in a common schedule‐induced polydipsia protocol. While certain aspects of the protocol were cohort specific, the behavioral observations made during the common induction phase was used to predict future drinking category classification based on common 12‐month open‐access drinking. The classification strategy for low drinking (LD), binge drinking (BD), heavy drinking (HD), and very heavy drinking (VHD) animals is described previously (Baker et al., 2014). About half of the animals in this study are either LD or BD animals (n = 26), and the other half are classified as HD or VHD (n = 24).