Renewal of extinguished operant behavior following changes in social context

Browning et al. (2018) worked with lab rats to see if social context can restart an old, extinguished behavior. First, the rats learned to press a lever for food. Then the food stopped and the lever pressing died out. Finally, the researchers either removed or brought back a second rat that had been in the cage during training. They watched to see if the first rat started pressing again.

The design is a single-case lab study. The only thing that changed was the presence or absence of a peer.

Lever pressing came back every time the social scene shifted. When the peer left, pressing returned. When the peer came back, pressing returned again. The behavior renewed simply because the social context changed.

This shows that social stimuli can control renewal just as strongly as physical places or smells do.

Aggarwal et al. (2026) took the same idea into a children’s outpatient clinic. They saw renewal in about one-third of context changes. Task switches sparked slightly more renewal than social or room changes, but the pattern is the same: any change can bring behavior back.

Bouton (2024) explains why. His review says relapse is not a permanent habit; it is tied to context. When the scene shifts, the old response pops out. Browning’s peer effect is one more example of this rule.

Michael (1974) set the stage. That study showed that a stimulus is only reinforcing inside the schedule context where it was earned. Change the context and the value flips. Browning shows the same flip can restart an extinguished behavior.

You already watch for room changes, new staff, or different toys. Now add peer presence to your checklist. If you remove a peer during extinction, plan for a possible burst when the peer returns. If you add a peer later, expect the same. Pre-teach the learner how to ask for items or use a replacement skill in both social setups. A quick peer swap can undo weeks of extinction without this step.