In Pavlovian conditioning, the strength of responses depends on the probability of reinforcement, but this study controlled for reinforcement rates to better understand this relationship.
Two experiments with mice showed that varying the probability of reinforcement influenced response rates during training and extinction phases, even when the overall reinforcement rate was constant.
The findings suggest that both the probability of reinforcement and the rate at which it is delivered play important roles in behavior, challenging existing learning theories to incorporate these factors more effectively.