Reinforcer value moderates response magnitude and persistence during extinction: A randomized trial
High reinforcer consumption relative to demand intensity worsens extinction bursts—lower the 'dose' before you start extinction.
01Research in Context
What this study did
Lambert et al. (2024) asked a simple question: does the 'dose' of reinforcer you give before extinction change how bad the burst gets?
They worked with adults with developmental delays in a lab setting. First they let each person eat as much of a favorite snack as they wanted while doing a simple task. Then they stopped the snacks and watched what happened.
What they found
People who had eaten the most snacks relative to their own 'breaking point' showed the biggest extinction bursts. Their button pressing shot up higher and lasted longer when the snacks stopped.
The team called this ratio 'consumption relative to demand intensity.' It beat plain snack size or any other measure at predicting the burst.
How this fits with other research
Shahan et al. (2025) saw the same pattern in rats: bigger past reinforcement made bigger bursts. The new study shows the same rule works for humans once you adjust for each person's limit.
Capio et al. (2013) looks like it disagrees. They found continuous reinforcement created more persistence than intermittent. The difference is population: their sample had autism, while Lambert's adults had broader delays. The two results warn us to tailor pre-extinction conditions to each learner.
Shahan et al. (2025) also showed you can shrink a burst by adding a rich alternative reinforcer during extinction. Lambert's work says you can also prevent the burst by lowering the reinforcer 'dose' before you start.
Why it matters
Next time you plan extinction, test a short demand session first. Note when the learner starts to refuse or slow down—that is their personal 'Pmax.' Keep snack or token portions well below that point for a day or two before you place the behavior on extinction. You should see a smaller burst and safer session for both you and the client.
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02At a glance
03Original abstract
Extinction bursts, or temporary increases in rates and intensities of behavior during extinction, can preclude the inclusion of extinction in intervention packages meant to suppress severe challenging behavior. To identify underlying behavioral mechanisms responsible for response persistence and bursting, 69 adults with developmental disabilities completed a low-stakes translational investigation employing a 2×2 factorial, crossed, and randomized matched blocks design, with batched randomization logic. In each of the four test groups, we made distinct antecedent manipulations with two value parameters commonly studied through behavioral economics (i.e., demand intensity, Pmax) and evaluated the extent to which each of these manipulations influenced target responding during extinction. Although we found statistically significant differences attributable to both parameters, variations in reinforcer consumption relative to demand intensity were most influential across all dependent variables. This outcome implicates consumption relative to demand intensity as both a mitigating and exacerbating preextinction factor that influences the prevalence of adverse collateral extinction effects (e.g., bursts).
Journal of applied behavior analysis, 2024 · doi:10.1002/jaba.1088