Fig 2. Single subject activation maps to the M (red) and P (green) stimuli. The images are in radiologic convention (ie, left is right). The functional map is overlaid on a high resolution anatomic image. The regions showing overlapping M and P activity are yellow. Note that both stimuli generate robust activation of V1. The sections in the top picture depict active regions in the brain, and the bottom 2 sections show representative regions of activation. For the M stimulus response, V5 is activated. For the P stimulus, V4 is activated.