The macaque anterior cingulate cortex translates counterfactual choice value into actual behavioral change - Fouragnan, E; Chau, BKH; Folloni, D; Kolling, N; Verhagen, L; Klein-Flügge, MC; Tankelevitch, L; Papageorgiou, GK; Aubry, JF; Sallet, J; Rushworth, MFS (Nature Neuroscience, 2019)