Quick Answer
Extinction in ABA is the process of reducing and eventually eliminating an undesirable behavior by removing whatever has been reinforcing it. When a behavior no longer produces the outcome that was keeping it going, it gradually fades away. This is different from punishment. It’s about stopping the fuel, not reacting to the fire.
If you’ve heard the word “extinction” in an ABA context and weren’t sure what to make of it, you’re not alone. It sounds clinical, maybe even cold. But the concept is actually grounded in something pretty intuitive: behaviors that don’t get results don’t last.
This article breaks down what extinction in ABA means, why it works, what an extinction burst is (and why you need to know about it before you start), and how ABA practitioners plan and implement this strategy effectively.
What Is Extinction in ABA?
In applied behavior analysis, extinction refers to the process of withholding the reinforcement that maintains an undesirable behavior. When the behavior no longer produces the response it’s been getting, it eventually stops occurring.
Here’s the core idea: every behavior happens for a reason. A child who screams during transitions may be doing so because screaming has reliably produced attention, comfort, or escape from a task. Remove that payoff consistently, and screaming stops producing the outcome that was maintaining it. Over time, it fades.
It’s worth being clear about what extinction is not. It isn’t punishment. ABA practitioners don’t react to the behavior with a negative consequence. They simply stop providing the reinforcement that’s been sustaining the behavior. That restraint, combined with actively reinforcing a better replacement behavior, is what makes extinction effective.
Common Forms of Extinction in ABA
Extinction procedures are typically matched to the function of the behavior. Common examples include the following.
Planned ignoring is used when a behavior is maintained by attention. The practitioner and others around the child withhold all attention during the behavior, including eye contact, verbal responses, and physical reactions. A student who calls out to get a laugh from classmates, for example, would experience planned ignoring when neither the teacher nor peers respond.
Escape extinction is used when a behavior is maintained by escape from a demand or task. Rather than allowing the child to exit the situation when the behavior occurs, the practitioner maintains the expectation. A child who throws materials to get out of a work session doesn’t get to leave, and the task remains present. Escape extinction should be implemented only with proper training and safety planning, as it can lead to significant escalation during extinction bursts.
Access extinction is used when a behavior is maintained by gaining access to a preferred item or activity. If a child throws tantrums to gain screen time, screen access is no longer provided contingent on the tantrum. The behavior no longer produces the desired outcome.
Knowing which form applies requires a functional behavior assessment first. Applying the wrong extinction procedure means you may not be withholding the reinforcer that’s actually maintaining the behavior, so the procedure can fail or make things harder.
What Is an Extinction Burst?
This is the part every parent, teacher, and practitioner should understand before starting an extinction procedure: things can get worse before they get better.
When a behavior that’s been reinforced stops working, some individuals escalate. The screaming gets louder. The tantrum lasts longer. The behavior becomes more frequent or intense. That’s called an extinction burst.
Here’s what often gets left out: bursts happen less often than most people assume. Dorothea Lerman and Brian Iwata reviewed 113 sets of extinction data and found bursting in 24% of cases. Within that review, bursts appeared in 12% of cases where extinction ran alongside another procedure, compared to 36% where extinction was the only intervention. Those figures describe the cases they reviewed. They aren’t a prediction for any particular plan.
A 2024 record review by Muething and colleagues looked at 108 clinical cases and landed on the same 24% figure. That study also checked whether bursting tracked the behavior’s function, its topography, or the treatment components in use, and found no consistent relation among any of them. The case features you’d expect to flag a likely burst didn’t.
So why does everyone talk about bursts? Partly because it’s the extinction side effect that gets the most attention in training and in the literature, and partly because of what that 2024 finding means in practice. If burst risk doesn’t track the variables clinicians can see going in, you can’t sort cases into likely and unlikely ahead of time. You plan for a burst you may never see, because the alternative is being unprepared for one you do.
Think of it like this: if a vending machine has always dispensed a snack when you pressed a button and suddenly nothing comes out, plenty of people would press the button harder, press it more times, maybe even shake the machine. That’s what a burst looks like. The behavior escalates because it has worked before.
What this means in practice is that anyone implementing extinction needs to be ready to stay consistent if escalation happens. Giving in during that escalation reinforces the target behavior, which works against the procedure and can make the behavior more persistent. There’s a related risk worth knowing about. Behavior with a history of intermittent reinforcement, meaning it paid off some of the time but not always, tends to be more resistant to extinction than behavior that was reinforced every single time. One lapse doesn’t create that history by itself, but repeated inconsistency moves things in that direction.
When a burst does occur, it’s transient by definition, and the 2024 review found burst magnitude decreasing across sessions once extinction was in effect. It resolves as the behavior loses its reinforcement history. But it requires a plan.
Extinction as a Behavioral Principle
Extinction isn’t unique to ABA. It’s a basic principle of learning, and understanding the wider version helps explain why the ABA application works the way it does.
In operant conditioning, which is the framework most ABA procedures sit inside, extinction means a behavior stops producing the consequence that maintained it. That’s the version described throughout this article. There’s also respondent extinction, which works on reflexive rather than voluntary responses. If a signal that used to predict something meaningful stops predicting it, the conditioned response to that signal weakens. Same underlying idea, different type of learning.
One thing worth knowing about either version: extinguished behavior doesn’t always stay gone. A behavior that has faded can reappear later, sometimes after days or weeks with no sign of it, without anyone reinforcing it in the meantime. That’s called spontaneous recovery, and it’s a well-documented feature of extinction rather than a sign the plan failed.
This catches families off guard more than almost anything else in the process. A behavior everyone thought was resolved turns up again, and the natural reaction is to assume the intervention didn’t hold. What matters is what happens next. If the behavior still produces nothing, recovered responding generally declines with continued extinction, though how long it takes varies. If someone reinforces it because they’ve let their guard down, the behavior can come back at close to full strength. Consistency matters after extinction, not just during it.
When Is Extinction Used in ABA?
Extinction can be applied to a range of behaviors, including behaviors maintained by attention, behaviors that function as escape, inappropriate social behaviors, disruptive behaviors in classroom or therapy settings, and some feeding and sleep-related behaviors.
Extinction can be implemented on its own, but in practice it usually isn’t, and usually shouldn’t be. ABA practitioners pair it with differential reinforcement, meaning they actively reinforce a replacement behavior while extinction is in effect. If the child isn’t screaming, they’re receiving praise, tokens, or access to preferred activities. The goal isn’t just to reduce the problem behavior. It’s to build a better one in its place.
How to Implement Extinction: The Planning Steps
Extinction is not something to start without preparation. A poorly planned extinction procedure can be inconsistent, ineffective, or unsafe.
Before beginning, the ABA practitioner needs to identify the function of the behavior through a functional behavior assessment, so the correct procedure can be matched to what’s actually maintaining it. They also need to document the behavior’s baseline frequency, duration, and intensity, so they can measure whether the intervention is working.
From there, an extinction plan gets developed and shared with everyone working with the child, including teachers, aides, family members, and any other ABA staff. Consistency is critical. If one person continues to reinforce the behavior while others do not, the procedure won’t work and may prolong the extinction burst.
The plan also needs a safety component. If the target behavior involves anything potentially dangerous, such as aggression, self-injury, or elopement, the team needs to agree on how to keep the child and others safe during an extinction burst without inadvertently reinforcing the behavior.
Here’s a practical example. Say a student with ASD repeatedly pinches a classmate during circle time. If the pinching is maintained by peer attention, extinction would involve ensuring that peers and adults do not react to the behavior while maintaining safety. If removal from the group is used, that procedure may function as a time-out from reinforcement rather than extinction. The exact approach depends on the function identified in the assessment. In either case, every time the child sits beside her classmate without pinching, she receives specific praise and a token. The reinforcement side is just as important as the extinction side.
Extinction procedures should always be designed and supervised by a qualified ABA professional to ensure ethical implementation and the dignity of the learner. If you’re interested in training to become that professional, you can look at the master’s programs that prepare you for BCBA certification to find the right fit.
Frequently Asked Questions
What’s the difference between extinction and punishment in ABA?
Punishment is any consequence that reduces how often a behavior happens in future. It comes in two forms: positive punishment adds something after the behavior, and negative punishment takes something away. Extinction is different from both. Nothing is delivered or removed as a consequence. The reinforcement that was already maintaining the behavior simply stops arriving. Punishment changes what follows the behavior. Extinction discontinues the contingency that was keeping it going. That distinction matters both clinically and ethically.
How long does extinction take to work?
There’s no fixed timeline. How quickly responding drops off depends on several things: the behavior’s reinforcement history, the characteristics of the response itself, which treatment components are running alongside extinction, motivating conditions, and how consistently the plan gets implemented. Some behaviors resolve in days. Others take weeks. Consistency is one of the factors you can actually control, which is why it gets emphasized.
Is extinction the same as ignoring a behavior?
Planned ignoring is one form of extinction, used when attention is the reinforcer. But extinction can also mean maintaining a demand during an escape behavior, or no longer providing access to a preferred item contingent on the behavior. The right approach depends on what’s maintaining the behavior in the first place, which is why a functional behavior assessment comes first.
Can extinction be used for dangerous behaviors?
Yes, but with careful planning. When behaviors involve aggression or self-injury, the team needs a safety plan in place before starting. The challenge is to ensure safety during an extinction burst without inadvertently reinforcing the behavior in the process. A qualified ABA practitioner will build this into the intervention design.
Does extinction work without also teaching a replacement behavior?
It’s far less effective without one. Removing reinforcement for a problem behavior creates a gap, and extinction on its own tends to increase response variability, meaning the individual tries other things to get the same outcome. Differential reinforcement fills that gap deliberately by establishing an appropriate behavior that accesses the reinforcer. Pairing the two is well-established practice for exactly this reason.
Key Takeaways
- Extinction removes reinforcement, not comfort — It works by stopping the payoff that’s been maintaining the behavior, not by punishing or reacting to it.
- Match the procedure to the function — Extinction procedures are matched to behavioral function. Common forms include planned ignoring, escape extinction, and access extinction.
- Bursts are possible, not guaranteed — Two separate reviews put bursting at roughly a quarter of cases, and the 2024 review found no case features that reliably predict one. Plan for a burst regardless, because you can’t screen for it in advance.
- Expect the behavior to test you again later — Spontaneous recovery is normal. A behavior reappearing after it faded doesn’t mean the plan failed.
- Plan before you start — Extinction should never be implemented without a functional behavior assessment, a documented plan, and buy-in from everyone working with the individual.
- Pair it with positive reinforcement — Teaching a replacement behavior alongside extinction is what makes this strategy durable and ethical.
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