Do you make judgments about other people based on how similar they are to you?
Is it more important that people are close to you, either a close friend or a relative?
Do you think that brain regions fire when you think about people that you don’t know, but feel similar to, as though you were connected to them through kinship or previous friendship?

There was a study conducted that showed that when people answered questions about friends, whether or not they felt they were similar to them, the medial prefrontal cortex (MPFC) was active.

69. The Brain Responds Uniquely to People You Know Personally