In the lecture for this week, I covered research that examines whether or not infants have an innate bias for looking at human faces. In that research, researchers compared infants' looking time on three stimuli: a "blank face", a scrambled face, and a normal face. Consider why the researchers used the scrambled face as one of the stimuli. Why was it important to include this in addition to the other two conditions? What would have been the problem with the study if this stimulus had not been included?