A) Brain activations induced by active scratching an itch (red) are displayed together with the activations induced by the passive scratching an itch (blue), analyzed as stand-alone conditions.
B) Deactivations induced by active scratching (yellow) were represented in the hippocampus, amygdala, ACC and only slightly overlapped with the deactivations induced by passive scratching in the ACC (red). Standard Talairach space coordinates (x, y, z). The color tones displayed correspond to Z score values as depicted in the color bars (at the same scale). R = Right; L = Left.