Sentences with phrase «object permanence before»
And you have no sense of object permanence before about 9 months, for that matter, meaning EVERY single time a person or thing goes out of the range of your senses, you have no idea that it continues to exist.
http://ecochildsplay.com/ Not exact matches
Before the age of approximately 8 months, babies haven't grasped the concept of «object permanence».