During probe trials the signal was presented as in regular trials but the responses of the animals were never reinforced, providing a partial reinforcement schedule for the mice.
Twenty-one days after the last injection, we trained mice to respond for food reinforcers using a continuous reinforcement schedule as above and "degraded" the relationship between one action and its outcome, while the action-outcome contingency associated with the other aperture remained intact.
The acquisition phase had a 100% reinforcement schedule, i.e., the CS+ was reinforced on every trial.
Under the VI-30 reinforcement schedule, the reward-associated cue following a reinforced lever press was presented to rats for 3.5 s while the reward was delivered.
We tested 167 children on a DRL20 (20 sec) reinforcement schedule, and recorded IRTs and the number of reinforced responses across the session.
For GO stimuli, reinforcers (either $0.05 , $0.50 and $5.00 were delivered on a variable-ratio 3 reinforcement schedule for responding.
After subjects acquired the lever press response, training continued with 10 sessions under a FR1 reinforcement schedule in which one lever press resulted in delivery of one reinforcer.
In order to facilitate learning, animals were initially exposed to one session of magazine training were food pellets would be available on a random time schedule, and to three sessions of continuous reinforcement schedule (CRF) 1 day before training, where single lever presses would be reinforced.
The reinforcement schedule during the reinstatement test was the same as during extinction.
"In animal trainer talk," she said, "cook-offs are what they call a 'variable reinforcement schedule.' That means you get rewarded periodically but unpredictably.
He gives up much more easily than a rat rewarded on an intermittent reinforcement schedule, which starts off with consistent rewards that become rarer and more random.
