ABA Fundamentals

Stimulus control of a social operant

Lattal et al. (2023) · Journal of the Experimental Analysis of Behavior 2023
★ The Verdict

Social timing can be brought under clear stimulus control and then reversed, proving the contingency—not the partner—is in charge.

✓ Read this if BCBAs running social skills groups who want clean, cue-based protocols.
✗ Skip if Clinicians looking for direct language or play interventions.

01Research in Context

01

What this study did

Lattal et al. (2023) worked with pairs of pigeons.

Each bird had to peck a key within three seconds after its partner pecked.

The birds only got grain when both pecks happened in the right order.

Colored lights told the birds when the team contingency was on or off.

The researchers flipped the rules halfway through to see if the birds would switch.

02

What they found

The pigeons quickly matched their pecks to the light cues.

When the colors reversed, the birds reversed their timing.

This shows that a social response can come under tight stimulus control.

03

How this fits with other research

Thomas et al. (1968) first showed that cooperation needs the right cues.

They used a three-second delay game and found cooperation only when social signals were present.

Lattal’s study echoes this, but with stricter timing and a clear reversal test.

Reid et al. (2005) moved the same logic to preschoolers.

Kids learned to ask for teacher attention only when a card was green.

When the card was removed, the children still waited for the right moment.

Together, the three studies trace one line: multiple schedules can govern social acts from birds to children.

04

Why it matters

You can use color cues to set shared rules in social skills groups.

Start with a clear signal, like a green card, while peers practice turn-taking.

Once the timing is steady, fade the card and let natural reinforcers take over.

The pigeon data say the control will stick even after you change the signal.

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→ Action — try this Monday

Pick one peer interaction, add a colored card to signal when joint responding earns tokens, and plan one contingency reversal once rates stabilize.

02At a glance

Intervention
not applicable
Design
single case other
Sample size
6
Population
not specified
Finding
positive

03Original abstract

Three pigeon dyads were exposed to a two-component multiple schedule comprised of two tandem variable-interval 30-s interresponse time (IRT) > 3-s schedules in the presence of different stimuli. Pecks to keys by both pigeons of a dyad occurring within 500 ms of one another were required for reinforcement under one tandem schedule (the coordination component), and such coordinated responses were not required under the other (the control component). The terminal link of each schedule ensured that the reinforced coordination response was an IRT > 3 s. Rates of coordinated IRTs > 3 s and total rates of coordinated responses (composed of IRTs > 3 s and IRTs ≤ 3 s) were higher in the coordination components than in either of two different control components in which coordination was not required for reinforcement. This difference in coordinated responses in the presence and absence of the coordination requirement under stimulus control transitorily deteriorated and then was reestablished when the relation between the stimulus and the coordination contingency or its absence was reversed. The results show coordinated responding to function as a discriminated social operant.

Journal of the Experimental Analysis of Behavior, 2023 · doi:10.1002/jeab.878