Setting the occasion for adolescent inhibitory control

Occasion setting of timing behavior.

Rats were trained on a temporal switching discrimination, with 2 features, A and B, signaling 2 target conditioned stimuli, x and y; feature offset and target onset were separated by a 5-s feature-target interval, and all target stimulus presentations terminated in a food pellet. The target conditioned stimuli were either short or long (6 or 30 s): Specifically, when signaled by A, x was 6 s an...

Occasion setting and drug tolerance.

There is considerable evidence that drug-paired cues become associated with drug effects. It has been hypothesized that these cues act as Pavlovian conditional stimuli (CSs), and elicit conditional compensatory responses that contribute to tolerance. On the basis of a conditioning analysis of tolerance, we would expect that it should be possible to establish drug-paired cues as occasion setters...

Occasion Setting without Feature-Positive Discrimination Training

In four experiments rats received training in which a brief conditioned stimulus, x, occurred during presentations of an extended feature stimulus, A; a second brief stimulus, y, occurred during presentations of a second feature, B. In Experiment 1 both x and y were paired with food and, in a subsequent test, they elicited more conditioned responding when they were presented in the feature with...

Transfer of occasion setting: The role of generalization decrement

In Experiment 1,pigeons were trained on two feature-positive discriminations. A transfer test examined whether the feature from one discrimination enhanced responding to the target from the other. Transfer was obtained, but it was incomplete; the feature produced less responding to the transfer target than to its own. Experiments 2 and 3 examined whether this attenuation of responding was the p...

Blocking of occasion setting in feature-positive discriminations