Impact of d-amphetamine on temporal estimation in pigeons tested with a production procedure

Philipp J. Kraemer, Christopher K. Randall, John M. Dose, Russell W. Brown

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


The influence of d-amphetamine on timing in pigeons was examined with a production procedure. Birds were trained with a fixed time schedule in which food reinforcement was contingent on the first response made after a duration signal had appeared for 30 s. Probe tests involved trials in which the duration signal was extended to 90 s and reinforcement was omitted. In Experiment 1, 2.0 mg/kg d-amphetamine shifted peak responding to a duration shorter than that found with saline. In Experiment 2, the dose-response function for this drug effect was examined. A 0.3-mg/kg dose of d-amphetamine had no impact on performance, but a 1.0-mg/kg dose shifted the peak duration significantly relative to saline; a 2.0-mg/kg dose shifted the function even mere. These results complement previous findings with rats tested with the peak procedure and pigeons tested with a discrimination procedure.

Original languageEnglish
Pages (from-to)323-327
Number of pages5
JournalPharmacology Biochemistry and Behavior
Issue number2
StatePublished - Oct 1997


  • Perception
  • Pigeons
  • Timing
  • d-Amphetamine

ASJC Scopus subject areas

  • Biochemistry
  • Toxicology
  • Pharmacology
  • Clinical Biochemistry
  • Biological Psychiatry
  • Behavioral Neuroscience


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