figure 7.19 Mirror neuron research Participants in research on mirror neurons saw these pictures. Sometimes they were instructed to lift their finger after seeing someone else’s finger lifted (i.e, when viewing the images shown in Row A). Other times, they were to lift their finger when a small letter X indicated which finger they should lift (Row B). In both cases, then, they (1) received an instruction and (2) lifted their finger. So you might expect that, in both cases, their brain activity would be the same. But it differed: The photos in Row A, which display movement by another person, uniquely activated the participants’ mirror neuron system.