sentence: Object permanence is seen in children eight to twelve months old.
sentences_before: In the sensorimotor stage, children gain object permanence. This happens between 8 and 12 months. Object permanence is knowing that a thing is still in existence even if the child cannot see it.
sentences_after: In the task a toy is hidden under a blanket. If the baby can find the toy than the baby has learned object permanence.
concept_name: object permanence
headings: Child development Child Development Theories Cognitive Developmental Theory Stages of Cognitive Development