Seven-month old Amalia does not touch her nose when a spot of rouge is placed on it and she is allowed to look at herself in a mirror. This suggests that Amalia .

Has not developed  sense of self yet

Explanation:

The mirror stage is essential for the development of a child's brain. According to Lacan it is in this stage that the child develops a sense of their own self through their body.

Unless the child learns about their own body and what comprises it , it does not have a clear picture of the world as a child can only understand the outer world as something that is not a part of his own self.

So understanding the self is a key to understand the world for a child in developmental stage.

answer; longitudinal;