Answer:
Luis is demonstrating Object Permanence .
Explanation:
Object Permanence is a term that describes how a child understands that an object is existing even though the child can no longer see or hear it.
Usually, infants at a certain age do get upset and cry whenever an object has been hidden from them because they are yet to attain the understanding that an object continues to exist even when they can no longer see or hear from it.
On his part, eleven-month-old Luis has reached a stage where he understands that his mom is somewhere close to him even though he can't see or hear from her.
By not getting upset as his mother leaves the room because he knows that she is still in the house, Luis is demonstrating object permanence.
Object permanence revolves around the premise and the understanding that objects would continue to exist even though we cannot see them or they are away from earshot.
This theory was developed by Jean Piaget. This is what Luis exhibits here. He is aware that his mother is still somewhere around so he does not cry out of fear of being left alone.
Read more on https://brainly.com/question/15197662
