Conditioned reinforcement and response strength.
Conditioned reinforcers may just direct traffic, not drive the car.
01Research in Context
What this study did
Cudré-Mauroux (2010) wrote a theory paper. He asked: do conditioned reinforcers really make behavior stronger? Or do they just point the way like road signs?
He pulled together old lab data. No new kids or pigeons were tested.
What they found
The paper says ‘conditioned reinforcers’ might not power behavior at all. Instead, they may only tell the learner where the next real reward lives.
If true, our tokens, praise, and stickers work like arrows, not fuel.
How this fits with other research
Boutros et al. (2011) ran a single-case test right after the review came out. They showed one reinforcer acts like a quick signpost, but a long string of them slowly builds preference. Their data give the idea legs.
Walker et al. (2013) found neutral items turned into reinforcers only when a peer sat nearby. This adds a social twist: peers may help create the ‘signposts’ the review talks about.
Moxley (2002) had already shown that less real food makes pigeons look around less. That study set the stage by proving you must control the true reinforcer first, the exact worry the 2010 paper raises.
Why it matters
If tokens are just signs, you need to check they still point to real payoff. Before starting a token system, ask: does the child still care about the backup reinforcer? If not, your ‘reinforcer’ is only a map with no treasure. Pair every token with sure, valued items and watch response strength, not just sign-following.
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02At a glance
03Original abstract
Stimuli associated with primary reinforcers appear themselves to acquire the capacity to strengthen behavior. This paper reviews research on the strengthening effects of conditioned reinforcers within the context of contemporary quantitative choice theories and behavioral momentum theory. Based partially on the finding that variations in parameters of conditioned reinforcement appear not to affect response strength as measured by resistance to change, long-standing assertions that conditioned reinforcers do not strengthen behavior in a reinforcement-like fashion are considered. A signposts or means-to-an-end account is explored and appears to provide a plausible alternative interpretation of the effects of stimuli associated with primary reinforcers. Related suggestions that primary reinforcers also might not have their effects via a strengthening process are explored and found to be worthy of serious consideration.
Journal of the experimental analysis of behavior, 2010 · doi:10.1901/jeab.2010.93-269