This is a preview. Log in through your library . Abstract Gibbons have been historically overlooked in the field of comparative social and physical cognition. This study investigated the cognitive ...

The work of Jean Piaget shaped our understanding of cognitive development in children, and it also gave us several tasks that we can use to study other animals. One classic issue studied by Piaget is ...

Object permanence begins at around 4 months of age and is complete at around 12 months of age. What is object permanence? Simply put, it is the ability to understand that people or objects exist even ...