Biology and behavior. A set-point hypothesis of psychological functioning.
Think of every skill as having a hidden thermostat—your job is to reset it, not just nudge it.
01Research in Context
What this study did
E and colleagues wrote a think-piece, not an experiment.
They asked: what if mood, attention, and social skill work like body weight?
The authors borrowed Keesey’s obesity set-point idea and stretched it to all psychological traits.
They sketched a loop: environment shifts, behavior drifts, biology pulls it back to a preset level.
What they found
There are no data tables.
The paper gives only a diagram and a story.
The story says every client has a built-in target zone for each skill.
Your intervention may bump performance up or down, but the body will fight to return to that hidden setting.
How this fits with other research
Martens et al. (1989) set the stage. They said biology and operant science should share the same playground. Taras et al. (1993) brought a toy to that playground: the set-point.
Furrebøe et al. (2017) took the toy and ran further. They moved the set-point idea from weight and mood to shopping choices. They showed you can shift a person’s “choice set-point” with reinforcement schedules.
Geckeler et al. (2000) looked at the same obesity data E borrowed. S and team stayed in the weight-loss lane and listed self-management tactics. E went meta and turned the weight story into a general case-formulation tool.
Rachlin (1995) seems to disagree. H said we don’t need set-points; we only need value curves that bend. The two papers clash on paper, but both chase the same goal: explain why behavior settles where it does. The fight is only about language.
Why it matters
You now have a quick story for referral teams. When they ask why gains fade, you can say, “The client’s set-point may be pulling them back. Let’s plan relapse protection like we plan weight maintenance.”
Next time you write a behavior plan, add a line: “Teach the system a new set-point.” Then pick strategies from Frølich and S papers to make it real.
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02At a glance
03Original abstract
This article provides a broad overview of an exploratory thesis designed to enhance an understanding of perturbations and rigidities of psychological functioning--a set-point hypothesis of psychological functioning. Historical precedents and parallels with Keesey's set-point theory of obesity are offered. Basic tenets of the hypothesis are detailed, and relevance to clinical behavioral theory is outlined. It is concluded that the set-point hypothesis may provide a framework for conceptualizing clinical cases and optimizing interventions. The thesis appears to be testable; however, the articulation of specific methodologies and research designs must be undertaken before the ultimate usefulness of the set-point hypothesis can be determined.
Behavior modification, 1993 · doi:10.1177/01454455930171004