Figure 5

Effect of strategic complexity. Brain areas where neural activation correlated with strategic complexity during both cue and feedback phases (A), or only upon cue (C), or feedback (D) presentation. Modulation of the neural response produced by variation in strategic complexity (B). The relation between neural response and complexity is displayed over time in four example peaks in the anterior insula (first graph from left), inferior parietal lobule (second graph), ventrolateral prefrontal cortex (third graph), and anterior cingulate cortex (fourth graph). The x-axis of the bar-plots shows the time bins, each lasting 2 s. The time bins likely corresponding to the cue and feedback phases are highlighted. The y-axis shows the intensity of the modulation of the neural response produced by the strategic complexity, that is, the average coefficient of regression of complexity. In (A), the position of the example peaks is circled (with a color matching the corresponding graph). Error bars represent SEM. Intensities in (A,C,D) are color-coded according to the color bar displayed at the bottom, representing the correspondence between t-values and colors. We used a threshold of 0.001 at the voxel level and of 0.05 at the cluster level, FWE-corrected for multiple comparisons. aINS: anterior insula, IPL: inferior parietal lobule, VLPFC: ventrolateral prefrontal cortex, ACC: anterior cingulate cortex.