Figure 11.7: A test of infants’ implicit procedural memories The infant, as young as 2 months of age, learns to operate the mobile by kicking one leg (a). During the test, on another day, the mobile is again presented, but now the ribbon is connected to another hook, so the infant can’t control the mobile (b). The infant’s immediate kicking in this condition is a sign of long-term memory for how to control the mobile.

Both: Courtesy of Dr. Carolyn Rovee-Collier