Cognitive
Object Permanence
Typical age: 8 months
Object permanence is the understanding that things still exist even when hidden from view. This cognitive breakthrough usually emerges around 8 months and is why peek-a-boo becomes so exciting — your baby now understands you're still there.
Signs to Look For
- ✓Looks for a toy you've hidden under a blanket
- ✓Enjoys and understands peek-a-boo
- ✓Searches for dropped objects
- ✓Looks toward the door when a parent leaves
When to Talk to Your Pediatrician
Every child develops at their own pace. However, talk to your doctor if you notice:
- •Shows no interest in finding hidden objects by 12 months
- •Doesn't look for toys that fall out of sight
- •No interest in peek-a-boo or hiding games
Based on CDC developmental milestones. This is informational only — not medical advice. Every child develops differently. Consult your pediatrician with any concerns.