Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8977360 | Behavioural Processes | 2005 | 6 Pages |
Abstract
Previous research has shown that pigeons can remember which of four spatially distinct responses was last reinforced, for at least 72Â h. The present study sought to replicate this finding using rats. Rats were tested in an operant chamber containing four spatially distinct levers. In each session one lever was randomly selected to provide reinforcement for 15Â min. This reinforced period was preceded by a non-reinforced period that was 30Â s long, on average. During the non-reinforced period the amount the rat pressed on the previously reinforced lever was compared to responding on the other three levers, and was taken as a measure of memory. Sessions were separated either by 17Â min, 24 or 72Â h. Unlike pigeons, rats responded at chance levels following each of these retention intervals. This finding adds to previous research suggesting differences in cognitive processes in rats and pigeons.
Related Topics
Life Sciences
Agricultural and Biological Sciences
Animal Science and Zoology
Authors
Christina M. Thorpe, Donald M. Wilkie,