Delayed reinforcement of operant behavior.
Reinforcement delays help or hurt depending on the schedule context, so control the context before you control the clock.
01Research in Context
What this study did
Cudré-Mauroux (2010) wrote a theory paper, not an experiment.
The author pulled together decades of lab data.
Goal: show how the gap between response and reinforcer changes what we think reinforcement is doing.
What they found
Delay does not always weaken behavior.
Sometimes it hurts, sometimes it helps, sometimes it does nothing.
The outcome depends on the schedule, signals, and what else is happening in the session.
How this fits with other research
CHUNG (1965) saw response rate drop fast as delay grew.
Wolchik et al. (1982) got the opposite: tiny unsignaled delays made pigeons peck faster.
The papers seem to clash, but Cudré-Mauroux (2010) shows they tested different schedules.
Long delays on concurrent schedules punish responding.
Brief delays on IRT schedules accidentally reward rapid bursts.
Same variable, different context, different result.
Why it matters
When you set up token boards, delayed praise, or point systems, isolate the time gap from other cues.
If the delay is short and unsignaled, watch for accidental reinforcement of rushed, sloppy responses.
If the delay is long, expect drops in rate or shifts to other tasks.
Map the schedule first, then pick the delay.
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02At a glance
03Original abstract
The experimental analysis of delay of reinforcement is considered from the perspective of three questions that seem basic not only to understanding delay of reinforcement, but, also, by implication, the contributions of temporal relations between events to operant behavior. The first question is whether effects of the temporal relation between responses and reinforcers can be isolated from other features of the environment that often accompany delays, such as stimuli or changes in the temporal distribution or rate of reinforcement. The second question is that of the effects of delays on operant behavior. Beyond the common denominator of a temporal separation between reinforcers and the responses that produce them, delay of reinforcement procedures differ from one another along several dimensions, making delay effects circumstance dependent. The final question is one of interpreting delay of reinforcement effects. It centers on the role of the response-reinforcer temporal relation in the context of other, concurrently operating behavioral processes.
Journal of the experimental analysis of behavior, 2010 · doi:10.1901/jeab.2010.93-129