FIGURE 6.6 Emotion adaptation Gaze at the angry face on the left for 20 to 30 seconds, then look at the center face (looks scared, yes?). Then gaze at the scared face on the right for 20 to 30 seconds, before returning to the center face (now looks angry, yes?). (From Butler et al., 2008.)
Scientific American Mind Andrea Butler, Ipek Oruc, Christopher J. Fox, Jason J.S. Barton. Brain Research, 29 January 2008.