Fig. 3.

Mean (± SEM) percentage correct responses across menstrual cycle phase during water (open) and ethanol (closed) discrimination training sessions prior to generalization testing in individual female and male cynomolgus monkeys. Discrimination for female monkeys is split by menstrual cycle phase (EF, early follicular; LF, late follicular; LU, luteal; see Methods for details). For all monkeys excluding 25057 and 25079, for whom discrimination was re-acquired in < 30 sessions, the data plotted represent the last half of all training sessions