Parenting Counts is a product of Talaris Institute.


Acquires the Notion of Object Permanence (That a Hidden Object Still Exists Even If One Can’t See It) (7-12 Months)

Before 8 months, a baby will think that an object has disappeared if it is covered or hidden from view. For example, if a special toy is covered with a cloth, an infant at 7 months will likely lose interest and look away. The concept that objects exist even when they can’t be seen is called “object permanence.” Between 8 and 12 months, babies learn through exploring and testing their environment that objects remain even when covered up or removed from view. At this stage, infants especially enjoy games of peek-a-boo and joyfully removing blankets to discover hidden objects.


Baillargeon, R. (1994). How do infants learn about the physical world? Current Directions in Psychological Science, 3(5), 133

Thelen, E., & Smith, L. (1994). A dynamic systems approach to the development of cognition and action. Cambridge, MA: MIT Press.