What does it mean to have a self-concept that is so fused with representations of others?

Consider the Research by Zhu, Ziang, Fan, and Han in the text on Cross-Cultural Differences in Brain Activation When Considering the Self.  What does it mean to have a self-concept that is so fused with representations of others?  What does it mean to have a self-concept that is NOT fused with representations of others?  What might the behavioral implications be?
Suggested Topic Heading: Self-Concept and Cross-Cultural Differences