Baby Lisa is beginning to learn more about herself. When she sees herself in a mirror, she smiles and laughs but no longer needs to touch the mirror look behind it to find the baby that she sees. Researchers would say that baby Lisa is developing:

Awareness of Herself

Explanation:

Self-awareness: In psychology, the term "self-awareness" is described as a process through which an individual is being aware of distinct aspects of herself or himself involving various feelings, traits, and behaviors. However, it is considered as one of the psychological states whereby an individual generally becomes the "focus of attention".

In the question above, Researchers would say that baby Lisa is developing awareness of herself.