In this segment of the video, Marcus de Sautoy wants to point out that sensation to surroundings and self makes people more aware. There are many things in our life that we take for granted that help shaped who we are now. But when exactly do we become aware of self? In the study with a 16 month old child, a sticker is placed on the child's cheek and there is a mirror that will reflect an image of the child. The objective of this experiment is to see if the child will realize that a sticker has been placed on his cheek and touch it. The child however failed to realize the sticker. In another experiment, a 22 month child performs the same experiment but notice the sticker placed on her. This shows that between the month 18-22 months , the children will finally start to become aware of self. This experiment was a well devised experiment to see if the children were self aware. However, what part of environment plays a role in this? Have the children been exposed to mirrors before the experiment? There are still many questions about when people become self aware however this experiment have helped to narrowed it down into a smaller group. If we are not self aware what happens? Sautoy's son said in the video that he had no memories of ever going to the Grand Canyon. Does being self aware play a role in memory?