text: Also, in agreement with previous findings (Platt and Huettel, 2008; O’Neill and Schultz, 2010; Monosov and Hikosaka, 2013; Monosov et al., 2015), uncertainty or risk preference was evident because the monkeys preferred a 50% chance of 0.25 ml of juice 0.125 ml of juice on 93% of trials, even though…