Extinction is a behavioral term that basically means to determine the function/cause of a behavior and then to terminate access to that function in order to extinguish the behavior. You determine what the reinforcement for the behavior is and then you withhold it. There are different types of extinction, such as Tangible Extinction (the child does not receive access to a desired item or activity) and Escape Extinction (the child does not get to avoid or escape a non-preferred task or person). Extinction is used to decrease inappropriate behaviors such as tantrums, screaming, or saliva play. Here's some real life examples of extinction:
It might sound like an extinction procedure just means to ignore problem behaviors. There is an important distinction between Ignoring and Extinction. Ignoring is to not give your child attention because they are doing something you don't like or are seeking your attention in an inappropriate way. Extinction is a behavioral technique where you withhold reinforcement when the behavior occurs, so by definition you must know what the reinforcement is. Planned ignoring would only extinguish a behavior if the reinforcement was attention. If your client bites her arm because of sensory input and you ignore that, your ignoring will have no effect on the behavior. The child isn't biting for a reaction so you withholding a reaction doesn't matter.
Another way to understand the difference between Extinction and Ignoring is that extinction procedures will have Extinction Effects. If you are properly implementing an extinction procedure this is what it should look like:
This graphical display shows the course of a behavior after an extinction procedure was applied *the path of the behavior is what is important here. Try to ignore the "bad behavior" label. This is not my graph :-)
Initially the behavior is occurring at a rate of about 20 occurrences per day. Then the intervention begins. The intervention is clearly effective, as the problem behavior almost immediately drops off in frequency. But that "Honeymoon Period" ends, and the behavior skyrockets to a frequency of 40. Then the behavior makes a gradual decline until it is at a frequency of about 5, before dropping to 0. Some parents or professionals may think at this point that the behavior has been successfully terminated and the extinction procedure can be stopped. However, that's incorrect. After some time passes the behavior pops up again a few times, before decreasing to a very low rate.
This graph is explaining that once you introduce an extinction procedure you will see the Extinction Burst, then a gradual decline in the behavior, then Spontaneous Recovery of the behavior until eventually the behavior is extinguished completely, or occurs at a very low rate.
An extinction burst is a dramatic increase in the frequency/duration/intensity of the problem behavior. To explain more simply "Its going to get worse before it gets better". From the client's point of view, he/she is doing MORE of the behavior to try and get that reaction they are used to getting.
Spontaneous recovery occurs after the behavior starts to go away and can happen even without reinforcement. You could be doing everything right and all of a sudden the behavior will pop back up. If everyone on the team is being consistent then when spontaneous recovery happens you have nothing to worry about.
There's 1 more extinction effect to explain: Once you determine whats maintaining a behavior and start withholding it, now the child has no way to meet that need. So they may start engaging in new behaviors you haven't seen before. For example you may decide to start an extinction procedure with your 9 year old client for his behavior of teasing his sister. You determine that the function of teasing is attention from his sister. So you teach his sister to stop giving him attention as part of the extinction procedure. The teasing begins to decrease, but now your client has started pushing his sister.
The problem is you removed the maintaining variable, but didn't replace it with anything (translation= teach new skills). Your client has no way to get his "attention fix" because his sister no longer gives him the attention reaction he wants when he teases her. So your client starts being aggressive with his sister to get a reaction out of her. The great news is if you know about this you can plan for it. Such as incorporating contingent reinforcement into your extinction plan. Think of contingent as meaning "based on". Based on certain behaviors, you provide reinforcement. If your client talks to, hugs, or is appropriate towards his sister in any way she is free to give him attention.
The extinction burst can mean the behavior increases by frequency, duration, magnitude, etc. It could also mean certain people get targeted more, such as aggression being mainly directed at the teacher, or that in specific settings the behavior is more intense.
When done correctly and consistently extinction is a powerful behavior reduction tool, but there are also many considerations that must be made before just jumping straight into an extinction procedure.
