ABA Fundamentals

An evaluation of resurgence during treatment with functional communication training.

Volkert et al. (2009) · Journal of applied behavior analysis 2009
★ The Verdict

Resurgence is routine when you thin FCT, but signaled multiple schedules can prevent most of it.

✓ Read this if BCBAs who thin reinforcement after FCT in clinics, homes, or schools.
✗ Skip if Practitioners who only run initial FCT without thinning.

01Research in Context

01

What this study did

The team taught five children to ask for what they wanted instead of hitting or screaming.

They then slowly removed the reward for asking.

They watched to see if the old problem behavior came back.

02

What they found

Four out of five kids started hitting or screaming again when the reward for asking stopped.

The return of problem behavior is called resurgence.

It showed that resurgence is a real risk after FCT.

03

How this fits with other research

Muething et al. (2021) saw the same rebound in 41% of thinning steps.

Briggs et al. (2018) found it in 76% of steps.

Fuhrman et al. (2016) and Whiting et al. (2015) show you can dodge most of this risk.

They used signaled multiple schedules instead of plain extinction.

Kids kept low problem behavior and kept asking.

So the 2009 warning still stands, but newer work shows how to soften the blow.

04

Why it matters

Expect resurgence every time you thin or stop rewarding the FCT response.

Build a safety plan before you start.

Use signaled multiple schedules or booster FCT sessions.

Track both problem behavior and communication during thinning.

If you see a spike, pause and re-train the request before moving on.

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→ Action — try this Monday

Add colored cards to signal when asking earns a break and when it does not, then watch for any spike in problem behavior.

02At a glance

Intervention
functional communication training
Design
single case other
Sample size
5
Finding
negative

03Original abstract

Extinction-induced resurgence is the recurrence of previously reinforced behavior when another behavior is placed on extinction (Lieving, Hagopian, Long, & O'Connor, 2004). This phenomenon may account for some instances of treatment relapse when problem behavior recovers during extinction-based treatments. The current study sought to determine whether resurgence of problem behavior would reliably occur with 5 participants who received treatment with FCT. Results showed that problem behavior reemerged for all but 1 participant when the communicative response was exposed to extinction or thin schedules of reinforcement. These findings suggest that resurgence may account for some instances of response recovery during treatment, and that the described procedure may be useful for the further study of resurgence and eventual prevention of this phenomenon.

Journal of applied behavior analysis, 2009 · doi:10.1901/jaba.2009.42-145