ABA Fundamentals

An experimental space combining individual and social performances.

Ferster et al. (1968) · Journal of the experimental analysis of behavior 1968
★ The Verdict

A 1968 lab layout showed that social space itself can function as reinforcement, sparking decades of operant studies.

✓ Read this if BCBAs who struggle to motivate clients with social interaction.
✗ Skip if Clinicians only interested in tangible or edible reinforcers.

01Research in Context

01

What this study did

The authors built a new kind of lab space. Individual work booths opened into a shared monkey lounge.

Monkeys could press levers for food alone, then enter the group area. The setup let researchers watch social reinforcement happen in real time.

02

What they found

The paper only describes the space and some informal monkey antics. No numbers, no graphs.

Still, the layout became a template. Later teams used the same idea to prove social contact can act like food or water.

03

How this fits with other research

Peele et al. (1982) turned the lounge idea into hard data. Pigeons pecked a key to earn 30-second visits to a bird group. Every bird learned the response, showing social access works as a reinforcer.

Leander et al. (1972) added schedule control. Monkeys called on fixed-ratio schedules, proving vocal operants can be shaped just like lever presses.

Morris et al. (2022) moved the logic to kids. They let children pick their favorite adult interaction. Social time rose and problem behaviors fell, echoing the 1968 monkey lounge but with clinical goals.

04

Why it matters

You now have fifty years of evidence that social contact is a measurable reinforcer. When a client avoids peers, don’t jump to teaching social skills. First, test if brief access to a preferred person or small group will strengthen any response. Start with a simple contingency: one mand equals one minute of shared play. If the mand rate climbs, you have proof the social piece is valuable and can build from there.

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Offer 60 seconds of a client’s chosen social activity right after one target response and count if the response increases.

02At a glance

Intervention
not applicable
Design
other
Finding
not reported

03Original abstract

This report describes several primate environments in which two or more animals shared a common social area. Automatic programming was used to permit concurrent individual sessions. Some of the behavioral phenomena observed in these environments, including reinforcing properties of social interactions, are discussed.

Journal of the experimental analysis of behavior, 1968 · doi:10.1901/jeab.1968.11-209