Fig. 4.

Effect of stress on model-based learning as a function of individual WM capacity, as measured by OSPAN. Individual subjects’ model-based value weights are plotted for low OSPAN subjects (A) and high OSPAN subjects (B). Cortisol response markedly dampened expression of model-based choice in the low OSPAN subgroup but not in the high OSPAN subgroup. Regression lines are computed from the population-level estimate of the log-linear effect of stress on model-based weight. Dashed gray lines indicate 2 SEs.