An extinction burst is a temporary increase in a behavior’s frequency, intensity, or duration that happens when that behavior stops producing the reward it used to. In applied behavior analysis (ABA), it’s one of the most predictable side effects of an extinction procedure, and it often catches parents and caregivers off guard because the behavior appears to get worse right when you’re trying to make it stop.
Understanding why this happens, what it looks like, and how long it lasts makes it much easier to stay the course when you’re in the middle of one.
Why Behavior Gets Worse Before It Gets Better
Every behavior that persists does so because it’s being reinforced in some way. A child who screams at the grocery store may have learned that screaming eventually leads to getting a snack or leaving the store. An extinction procedure removes that reinforcement: the screaming no longer produces the snack or the exit.
The burst is what happens next. When something that used to work suddenly stops working, the natural response is to try harder. Think of pressing an elevator button that normally lights up. If nothing happens, you don’t just walk away. You press it again, harder, multiple times, maybe with visible frustration. That escalation is the same basic principle behind an extinction burst. The person increases the effort, frequency, or emotional intensity of the behavior because it has always worked before and the expectation is that more effort should produce the familiar result.
This is why most definitions in the field describe an extinction burst as an increase in response frequency, duration, or magnitude, often with an emotional or aggressive component. The emotional piece is important. Frustration, crying, or anger are common parts of the burst, not a separate problem.
What an Extinction Burst Looks Like
The specific behaviors vary depending on the person and the situation, but common examples include tantrums that become louder or longer, repetitive vocalizations that increase in volume, or self-injurious actions that temporarily intensify. A child who used to whine for five minutes to get a tablet might whine for twenty minutes, then escalate to screaming or throwing objects. A child who hit their head against a surface to get out of a task might hit harder or more frequently when that behavior no longer results in the task being removed.
The key features are consistent across situations:
- Higher frequency: the behavior happens more often than it did before extinction started
- Greater intensity: the behavior is louder, more forceful, or more extreme
- Longer duration: episodes last longer than they previously did
- Emotional escalation: frustration, aggression, or crying often accompanies the increase
The critical word in every definition of an extinction burst is “temporary.” The increase is not a sign that the intervention is failing. It’s actually a predictable marker that the extinction procedure is working, because the person is responding to the change in consequences.
How Long It Typically Lasts
For behaviors like tantrums, the average timeline is roughly one week before the behavior diminishes noticeably. That’s measured from the point when reinforcement is consistently withheld. Some bursts are shorter, some longer, depending on how long the behavior was reinforced before and how consistently the extinction procedure is applied.
A behavior that was reinforced every single time for years will generally produce a more intense and longer burst than one that was only occasionally reinforced over a few weeks. The strength of the learning history matters.
Why Consistency Is Everything
The single most important factor during an extinction burst is not giving in. If a child’s tantrum escalates and a caregiver provides the reinforcer “just this once” to stop the screaming, the situation becomes worse than where it started. The child has now learned that escalated behavior works. Instead of extinguishing the original behavior, you’ve accidentally reinforced a more intense version of it.
This is called intermittent reinforcement, and it creates behaviors that are far more resistant to extinction than behaviors that were reinforced every time. Slot machines work on this principle. The unpredictable payoff keeps people pulling the lever long after a predictable machine would have been abandoned. Giving in during a burst teaches the same lesson: if you push hard enough and long enough, eventually it pays off.
During a burst, the goal is to remain calm, stick to the plan, and redirect toward the desired alternative behavior rather than engaging with the escalation. Even brief lapses in consistency can prolong the burst and create confusion for the learner about which behaviors actually produce results.
Pairing Extinction With Positive Alternatives
Extinction is rarely used alone in good ABA practice. Because the burst can be intense and even risky, behavior analysts typically combine extinction with differential reinforcement, which means actively reinforcing a more appropriate replacement behavior at the same time. If a child screams to escape a difficult task, the screaming no longer produces escape (extinction), but asking for a break using words or a communication device does (reinforcement of the alternative).
This combination serves two purposes. It reduces the severity of the burst because the person has another path to the same reinforcer. And it builds a functional replacement skill so the person isn’t simply left without a way to communicate their needs. In fact, professional guidelines recommend trying reinforcement-based approaches first and reserving extinction procedures for situations where those alternatives haven’t been effective on their own.
Because a long reinforcement history with the unwanted behavior can make bursts more intense, being mindful of this possibility and having a replacement behavior ready before starting extinction is essential planning.
When Safety Becomes a Concern
If the behavior targeted for extinction involves aggression or self-injury, the burst poses a real safety risk. A child who bites when frustrated might bite harder or more frequently during the burst phase. A child who hits their own head might do so with greater force. In these cases, professionals implement the extinction plan alongside specific safety protocols and close supervision to prevent injury during the temporary escalation.
For caregivers managing these situations at home, this is one of the strongest reasons to work with a trained behavior analyst rather than attempting extinction independently. The burst is predictable, but its intensity isn’t always easy to anticipate, and having a safety plan in place before it begins can prevent harm.
Extinction Burst vs. Spontaneous Recovery
After a behavior has been successfully extinguished and hasn’t appeared for days or weeks, it can suddenly reappear. This is called spontaneous recovery, and it’s a distinct phenomenon from the initial burst. The burst happens at the beginning of extinction, right when reinforcement is first removed. Spontaneous recovery happens later, after a period of no responding, when the behavior resurfaces seemingly out of nowhere.
Spontaneous recovery episodes are generally less intense than the original behavior and far less intense than the burst. They tend to be brief, and if reinforcement continues to be withheld, they fade quickly. The longer the gap between extinction and spontaneous recovery, the more likely it is to occur, because the original learning can reassert itself when the newer learning (that the behavior no longer works) hasn’t been recently reinforced.
The management approach is the same: don’t reinforce the reappearing behavior, and it will fade again, typically faster than it did the first time.