What are "Cluster B" personality disorders?

What are "Cluster B" personality disorders?

Rhoda Hahn (Psychiatrist) gives expert video advice on: What is a "personality disorder"? and more...

These are the sort of more dramatic personality disorders. I would tell you there's probably more literature on these. Just tons of things that have been written and discussed about these personality disorders. "Cluster B" is antisocial, borderline, histrionic and narcissistic personality disorders. They're discussed in one cluster I think because there's quite a bit of overlap. You'll see people with features of more than one quite frequently among these four. There isn't really a strong genetic component that one can discuss as with "Cluster A".