Figure 7. Comparison of peak activations within the prefrontal cortex from the present study and those from Badre and D'Esposito (2007) and Koechlin et al. (1999, 2003). A schematic display of the approximate distribution of the activation foci within the prefrontal cortex is provided with spheres (8 mm radius) centered on the coordinates of peak activations in L2 from the present study (red), Badre and D'Esposito (2007; green), and Koechlin et al. (1999, 2003; blue). The MNI-coordinates of our study were converted into the Talairach ones conforming to the other studies. The experimental conditions and the coordinates of the peak voxels in each study are described as follows: 1, “branching control” (−36, 57, 9); 2, “context level” (−36, 50, 6); 3, branching condition (−43, 49, −4); 4, “episodic control” (−40, 32, 20); 5, episodic condition (−45, 27, 24); 6, “dimension level” (−50, 26, 21); 7, “feature level” (−37, 11, 31); 8, “contextual control” (−44, 8, 20); 9, contextual condition (−32, −2, 43); 10, “response level” (−30, −7, 63). Note that context level from Badre et al. (2007) is different from contextual level in Koechlin et al. (1999, 2003) and the contextual condition in the present study. Adapted from Badre et al. (2007).