Figure 1.

Brain areas that were modulated by both speech viewing and speech production (red color scale)- the intensity bar denotes the intensity of the BOLD signal measured in Z-scores compared to baseline. The contrast ‘speech production > speech viewing’ is shown in the green (the green color scale shows the difference in activity measured in Z-scores between the two tasks). There was a slight overlap among the two statistical maps in the left middle and inferior frontal lobe (shown in a shade of yellow). The numbers at the top of the axial images show the locations of the slices in the z direction (top-to-bottom) in MNI coordinates. All images are shown in neurological orientation (left = left; right = right).