Figure 2.

Activation locations in anterior prefrontal cortex. Dots indicate locations of activation in different studies of implicit attention control mechanisms. Color code: Contextual cueing (bluish colors): Blue: Target change early in learning [52]; Turquoise: Target change in repeated displays after extensive learning [46]. Cross-dimensional singleton search (reddish colors): Orange: Change-related activation [36,37]; Magenta: Dimensional uncertainty [36]. Left hemisphere is on the left. Slices represent 2 mm-spacings between Talairach [58]-coordinates y = 39 to y = 55.