Login
Copyright

Cluster B Personality Disorders: Erratic Types

An error occurred trying to load this video.

Try refreshing the page, or contact customer support.

Coming up next: Cluster C Personality Disorders: Avoidant, Dependent, Obsessive-Compulsive

You're on a roll. Keep up the good work!

Take Quiz Watch Next Lesson
 Replay
Your next lesson will play in 10 seconds
  • 0:09 Personality Disorders
  • 2:18 Antisocial
  • 3:38 Borderline
  • 5:09 Histrionic
  • 6:29 Narcissistic
  • 8:00 Lesson Summary
Add to Add to Add to

Want to watch this again later?

Log in or sign up to add this lesson to a Custom Course.

Login or Sign up

Timeline
Autoplay
Autoplay
Create an account to start this course today
Try it free for 5 days!
Create An Account

Recommended Lessons and Courses for You

Lesson Transcript
Instructor: Natalie Boyd

Natalie is a teacher and holds an MA in English Education and is in progress on her PhD in psychology.

Anyone can feel a little emotional, but there's something wrong when a person's emotions are always extreme. In this lesson, we'll look at the four cluster B personality disorders which are characterized by erratic behavior and extreme emotion.

Personality Disorders

Abe doesn't care about anyone. He ignores the rights of others, like the time he stole money from a coworker. He also beat up a guy in a bar just because the guy wouldn't move. He lies and doesn't feel bad about any of the things he does.

Brett, meanwhile, isn't as disrespectful as Abe, but he has his own problems. His mood swings back and forth between very happy to very sad. He acts impulsively and is terrified of being alone, but he makes it hard for anyone to get too close to him because of his moods.

Like Abe and Brett, Heather has trouble with other people. She is extremely sensitive and gets very upset whenever anyone says anything in the least bit negative to her. She does and says things just to get attention, and is obsessed with looking pretty.

Finally, Nestor believes that he's better than everyone. He doesn't notice when others are upset, and expects everyone to notice everything about him. He exaggerates his achievements and believes that he deserves constant praise and respect from everyone.

Though Abe, Brett, Heather, and Nestor are all very different, they are all suffering from personality disorders, which are psychological disorders involving behaviors that make it difficult to have successful interpersonal relationships.

The 10 personality disorders are usually grouped into three clusters, with several disorders in each cluster. Cluster B disorders are characterized by erratic behaviors. Like Abe lying or Heather getting unreasonably upset if someone is negative, patients with a cluster B personality disorder act irrationally, which keeps them from being able to have positive interpersonal relationships. Let's look closer at the four disorders in cluster B: antisocial personality disorder, borderline personality disorder, histrionic personality disorder, and narcissistic personality disorder.

Antisocial

Let's start with Abe. He's really disrespectful. He doesn't care about anybody's rights, and he just does whatever he wants. Abe is suffering from antisocial personality disorder, which is characterized by a consistent disregard for the rights of others.

People with antisocial personality disorder are often described as predators. They show little or no remorse for their actions, no matter who they hurt. Remember that Abe stole money and beat up a guy in a bar, but he's not at all sorry.

It's very common for antisocial personality disorder patients to have a criminal history because they do not care about the rights or safety of others and will do anything to get what they want. It's like they are trying to move from one side of a garden to the other, but instead of walking around the flowers and plants like most people, they just jump on a bulldozer and roll over everything in their way.

Even though people like Abe do not feel empathy for others, they can mimic some emotions. As a result, people like Abe may appear to be charming on the surface. Below, though, they do not feel emotions that relate to others. Abe, for example, might be able to act like he's in love with someone, but he isn't really.

Borderline

So Abe has antisocial personality disorder. What about Brett? Remember that he seems constantly to be changing; his mood swings from one extreme to another, and he acts impulsively. Brett has borderline personality disorder, which involves unstable behaviors and feelings. It's as though they live on the borderline between two extremes and are always being pulled in one direction or the other.

Brett, like many people with borderline personality disorder, suffers from extreme highs and lows that dictate his behavior. As though his emotions were rolling on a sea, one minute he's up and the next he's very far down.

It's not just his mood that's unstable, either. Brett doesn't feel like he's got an identity. He actually feels like a different person from moment to moment and sometimes says he feels disconnected from himself. When he looks at pictures and home movies, it feels like someone else lived those experiences and that it doesn't have anything to do with him. These feelings, sometimes summed up as identity disturbance, are common among patients with borderline personality disorder.

Besides mood swings and identity disturbance, many people like Brett have a hard time relating to others because they see others as either completely perfect or as terrible, worthless human beings. There's no middle ground for them, and this makes it very difficult for them to have interpersonal relationships.

Histrionic

Remember Heather? She's overly emotional and obsessed with compliments, especially about her appearance. She does and says things just to get attention. She's suffering from histrionic personality disorder, which involves excessive emotions and attention-seeking behavior. Histrionic patients act hysterically, with overblown emotions even in normal situations.

When Abe doesn't get what he wants, he just takes it. But when Heather doesn't get her way or isn't the center of attention, she'll cry, cause a scene, or throw a temper tantrum. She feels like she can't go on without others' attention and approval. Likewise, if Heather hears anything even slightly negative, she reacts as though the world might end. This is especially true of her looks. She's pretty, but if people don't constantly compliment her and tell her that she's the most beautiful person they've ever seen, she gets unreasonably upset.

To unlock this lesson you must be a Study.com Member.
Create your account

Register for a free trial

Are you a student or a teacher?
I am a teacher
What is your educational goal?
 Back

Unlock Your Education

See for yourself why 10 million people use Study.com

Become a Study.com member and start learning now.
Become a Member  Back

Earning College Credit

Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2,000 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Create an account to start this course today
Try it free for 5 days!
Create An Account
Support