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Updated: Mar 17, 2026

The Power of Interstimulus Interval for the Assessment of Temporal Processing in Rodents
Published on: April 19, 2019
Temporal discrimination and delayed reinforcement
Jonathan Buriticá1, Zirahuén Vilchez1, Cristiano Valerio Dos Santos1
1CEIC, Universidad de Guadalajara, Mexico.
Abstract:
We attempted to determine the effect of reinforcement delay on time discrimination in an interval bisection task. Three groups of rats were exposed to immediate, delayed reinforcement and longer signals with immediate reinforcement in acquisition and test. Results show differences in the amount of training necessary to reach the acquisition criteria, the Weber fraction and the range or overall stimulus control. The results suggest an increased difficulty to discriminate the difference among durations rather than an increase in estimated time as main effect of delayed reinforcement.
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