FIGURE 7.3 Distinguishing people from nonliving things these photos show a task used by Poulin-Dubois (1999) to study infants’ reactions when they see people and inanimate objects (in this case a robot) engaging in the same action. Both 9- and 12-month-olds show surprise when they see inanimate objects move on their own, suggesting that they understand that self-produced motion is a distinctive characteristic of people and other animals.
BOTH: COURTESY OF DIANE POULIN-DUBOIS