Figure 3
Results of Experiment 2. (a) Results of the color-reward association task of Experiment 2 averaged over all participants (n = 8). Correct color reports were generally faster for colors associated with higher rewards. (b) Results of the working memory task of Experiment 2 (n = 8). The error between the reported and the remembered orientation was smaller for stimuli surrounded by a ring in a color that previously predicted higher rewards. This effect was significant when all trials were analyzed together but strongly relied on the first half of the trials and the effect failed to reach significance in the second part of the experiment. Color cues were only presented in the sample phase, or not at all. Error bars represent within-subjects s.e.m.’s88. Asterisks indicate significance levels for pairwise comparisons between reward-cues (**p < 0.01). The open circle indicates a significant difference from the no cue condition (p < 0.05).
