Fig. 4.

Bold activation % change (relative to baseline mean intensity) for the right paracingulate cortex (BA 10) (a) and BA 32 (b) over the different stimulus realism conditions. Dotted line indicates human instruction, solid line indicates computer instruction. Stimulus realism has been collapsed into low, medium and high. Negative values indicate the mean level of activation in that region was lower than during the baseline period. Standard error bars are shown.