Temporal generalization accounts for response resurgence in the peak procedure

Federico Sanabria, Peter R. Killeen

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


The peak interval (PI) procedure is commonly used to evaluate animals' ability to produce timed intervals. It consists of presenting fixed interval (FI) schedules in which some of the trials are replaced by extended non-reinforced trials. Responding will often resume (resurge) at the end of the non-reinforced trials unless precautions are taken to prevent it. Response resurgence was replicated in rats and pigeons. Variation of the durations of the FI and the non-reinforced probe trials showed it to be dependent on the time when reinforcement is expected. Timing of both the normal time to reinforcement, and the subsequent time to reinforcement during the probe trials followed Weber's law. A quantitative model of resurgence is described, suggesting how animals respond to the signaling properties of reinforcement omission. Model results were simulated using a stochastic binary counter.

Original languageEnglish (US)
Pages (from-to)126-141
Number of pages16
JournalBehavioural processes
Issue number2
StatePublished - Feb 22 2007


  • Model
  • Peak procedure
  • Pigeons
  • Rats
  • Reinforcement omission
  • Resurgence
  • Temporal control

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Behavioral Neuroscience


Dive into the research topics of 'Temporal generalization accounts for response resurgence in the peak procedure'. Together they form a unique fingerprint.

Cite this