DBT, MBT and the Behavioral Chain

One of the things I have noticed about Dialectical Behavior Therapy Family Skills versus Mentalization Based Skills is that they operate at a different link on the behavioral chain. In “When Hope is Not Enough” I have a section called “the BPD Dynamic.” What this dynamic outlines is a behavioral chain. That chain goes like this:

Event -> Interpretation -> Emotional/Physical Feelings -> Action Impulses -> Expression and Behavior

DBT-FST seems to me to operate at the Action Impulses to Expression and Behavior link, while validating the Emotional/Physical Feelings link. Don’t get me wrong, the DBT-FST skills are extremely powerful in communicating with someone with BPD. Yet, the change that is requested is at the end of the chain. I have heard that Marsha Linehan is quoted as saying something like, “Just because you feel like a crazy person, doesn’t mean you have to behave like one.” The point here is that DBT is a behavioral therapy and by modifying behavior, that works backwards toward regulating emotion and tolerating distress. In other words, DBT trains you to behave differently based on your feelings. When you gradually learn that your new behavior is more effective than the previous behavior, you break the conditioned chain between Action Impulses and Expression and Behavior. That is the essence of the DBT skill “Opposite Action.” An interesting side note is that by practicing Opposite Action (that is, doing the exact opposite of what your feelings implore you to do – such as engaging when you feel sad, rather than hiding under the covers all day), you actually feel better, because the action does work backward. Dr. Paul Ekman found that configuring one’s face to mimic a certain feeling actually causes that feeling to be experienced. That is the theory behind DBT’s “Half Smile” skill. Ultimately though, by working at that link in the chain, the person still feels the emotion, yet he or she just behaves differently than the emotion originally informed him/her to behave.

MBT on the other hand takes on the on the problem at the Interpretation link. By asking questions and being open to alternative interpretations, the person with BPD is more likely to have a broader view of other people’s behavior and the events in life. DBT never asks about the intent or motivation of the other person and just takes the interpretation as a given in a person with BPD. If a person with BPD says something happens and that something means X, then in DBT it means X. There is very little questioning of the validity of the interpretation X. In MBT, however, the interpretation X can be questioned and alternative interpretations (such as Y or Z) can be examined. The nice thing about this is that when the person with BPD is faced with a similar situation, he/she is less likely to jump to conclusion X and might consider Y or Z.

An example of the differences in the two approaches is as follows:

My daughter comes home from school after being teased by a boy on the playground. My daughter ends up throwing a thermos at the boy’s head.

With DBT, I would validate her anger and ask her how she could behave more effectively the next time this teasing occurs. So next time she will behave more effectively and not throw the thermos.

With MBT, I would validate her feelings and begin to probe with curious and straight-forward questions as to the intent of the boy. Perhaps he actually likes my daughter and that is why he is teasing. Perhaps he is showing off to his friends. If this approach is taken, my daughter is more likely to consider the boy’s motivation for the teasing. If she understands the motivation, she can actually never get angry and risk throwing the thermos.

All of that being said, I believe these skills have to be learned as a “ladder” to effectiveness. You can’t start at point E without going through points A-D. DBT-FST provide the foundation for more advanced skills, like those in MBT.