ABA Fundamentals

Transfers of stimulus function during roulette wagering

Dixon et al. (2017) · Journal of Applied Behavior Analysis 2017
★ The Verdict

Pairing a stimulus with liked words in an equivalence class can raise the value of that stimulus in later real-life choices.

✓ Read this if BCBAs teaching value-based decision making to teens or adults.
✗ Skip if Clinicians focused only on reducing problem behavior with no interest in stimulus value.

01Research in Context

01

What this study did

Dixon et al. (2017) worked with 25 adults who play roulette for fun.

The team used a computer program to teach the adults that one roulette color goes with nice words and another color goes with nasty words.

After the colors and words became one class, the adults played a free roulette game while the researchers tracked how much they bet on each color.

02

What they found

Twenty-one of the 25 adults raised their bets on the color that had been paired with nice words.

The change happened even though the color itself had never paid more money; only the words had been nice.

03

How this fits with other research

Rojahn et al. (1994) showed the same transfer effect earlier. They taught adults equivalence classes, then gave one member a mild shock response. The fear reaction popped up for every member of the class.

Roche et al. (1997) found the same pattern with pleasant feelings. Once a stimulus entered an equivalence class, the good feeling attached to one member spread to the rest.

Dixon’s group simply moved the idea from lab feelings to real-world gambling. The mechanism—equivalence-based transfer—stays the same.

04

Why it matters

You can alter how clients value stimuli without touching the reinforcer itself. Pair a token, picture, or color with words the client already likes, check that equivalence forms, and the token gains that same appeal. Try this when teaching money skills, food choice, or social media safety. One short equivalence lesson can shift later decisions without extra reinforcement.

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Pick one neutral token, teach it belongs to the same class as your client’s favorite praise words, then watch if the client chooses the token more often in a free-play task.

02At a glance

Intervention
stimulus equivalence training
Design
single case other
Sample size
25
Population
neurotypical
Finding
positive

03Original abstract

Twenty-five recreational gamblers were initially asked to place bets on either red or black positions on a roulette board in a simulated casino setting. Each participant was then exposed to a stimulus pairing observing procedure which attempted to develop equivalence classes between one color (black or red) and traditionally positive words (e.g., love, happy, sex) and another color (black or red) and traditionally negative words (e.g., death, cancer, taxes), in the absence of consequence manipulations. Twenty-one of the twenty-five participants demonstrated greater response allocation to the color position on the roulette board that participated in a relational network with the positive words. Variations in sequencing of experimental conditions had no impact on poststimulus-pairing wagers, but did impact tests for equivalence accuracy.

Journal of Applied Behavior Analysis, 2017 · doi:10.1002/jaba.417