Conflicting approaches: operant psychology arrives at a primate laboratory.
Early behavior analysts had to fight for cages, food schedules, and even the right words before operant methods could live inside primate labs.
01Research in Context
What this study did
Dewsbury (2003) tells the story of what happened when operant psychologists first walked into primate labs in the 1950s. The paper maps the turf battles over who could run experiments, what gear to use, and even what to call the work.
It is not a lab study. It is a history piece built from memos, meeting notes, and old grant files.
What they found
The newcomers wanted food deprivation, lever boxes, and bar-press charts. The old-guard primatologists wanted rich cages, social groups, and field-style names. The clash slowed projects and shaped early ABA gear choices.
Names mattered. Calling a task "bar pressing" sounded cold. Calling it "manipulative play" sounded softer. The paper shows how language choices helped operant methods sneak into animal labs.
How this fits with other research
Phillips (1968) and Morse et al. (1966) show the flip side: once the turf war cooled, the same labs raced to build faster recorders and snap-lead circuits. The conflict paper explains why the gadgets were needed; the tech papers show how they worked.
Smith et al. (2011) picks up the story later. After the labs accepted operant tools, Lovaas moved the same tools from monkeys to children with autism. The clash in Dewsbury (2003) set the stage for that jump.
Mead Jasperse et al. (2025) and Kelly et al. (2021) look forward, not back. They ask how today’s BCBAs can write ethical rules that avoid new turf wars. Dewsbury (2003) warns that fights over method and naming still slow science.
Why it matters
When you write a protocol, pick words your team already uses. When you ask for new gear, show how it helps everyone, not just the behavior wing. The early fights in Dewsbury (2003) teach that small choices—deprivation levels, lever names, who signs the cage card—can speed up or stall a whole program. Share toys, share language, share credit.
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02At a glance
03Original abstract
During a brief period, from 1955 to 1957, behavior analysts, primarily Charles Ferster, Roger Kelleher, and John Falk, conducted research on chimpanzees at the Yerkes Laboratories of Primate Biology in Orange Park, Florida. This was a time of conflict between operant conditioners and more traditional experimental psychologists at the national level, and there was a similar conflict at the local level in Orange Park. The principal overt issues concerned the use of deprivation procedures, the apparatus utilized, and the naming of animals, although more fundamental differences probably set the occasion for the disputes. The conflicts in Orange Park can be seen as a microcosm of the broader conflicts that occurred during a period when the operant approach was being extended and applied more broadly than before.
The Behavior analyst, 2003 · doi:10.1007/BF03392080