 Extinction burst. It's what happens when you put a behavior on extinction. It bursts and I don't mean it explodes like Starburst in your mouth with a powerful thing in this anyway. No, not like that. It's not like someone exploding. It's um, it's I mean, it's a burst. It's a it's a whole bunch of behavior coming out So let me back up a little bit. All right, so first off Extinction you put a behavior on extinction when that behavior is maintaining at a certain level and you remove the reinforcers for it and Before the behavior gets better In other words before it reduces it's probably going to get worse The behavior is going to increase so if the behavior is maintaining at this level and right here is where you start your extinction In other words, you move the reinforcers for the behavior The behavior is likely going to get worse before it starts to taper down this little worse part here is called your extinction burst Now you could get all mentalistic and nasty and talk about why this is going on Or you can just leave it at the fact that it happens when you add it when you remove reinforcers for a particular response Be ready for it And one of the things that you know is if you have a problem behavior and you're putting it on extinction Then you better be aware that it's about ready to get worse and when the behavior gets worse You actually know it's getting better because you've found the reinforcing Property the thing that was reinforcing the response you removed it now It's on extinction behaviors gonna go away watch out for the extinction burst don't reinforce it while it's in there, please You