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Reward magnitude and timing in pigeons
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Ludvig, Elliot Andrew, Balci, Fuat and Spetch, Marcia Louise (2011) Reward magnitude and timing in pigeons. Behavioural Processes, Volume 86 (Number 3). pp. 359-363. doi:10.1016/j.beproc.2011.01.003 ISSN 0376-6357.
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Official URL: http://dx.doi.org/10.1016/j.beproc.2011.01.003
Abstract
We investigated the interaction of motivation and timing by manipulating the expected reward magnitude during a peak procedure. Four pigeons were tested with three different reward magnitudes, operationalized as duration of food access. Each stimulus predicted a different reward magnitude on a 5 s fixed-interval schedule. Trials with different reward magnitudes were randomly intermingled in a session. Most pigeons responded less often and started responding later on peak trials when a smaller reward was expected, but showed no differences in response termination or peak times. Reward magnitude was independently corroborated through unreinforced choice trials, when pigeons chose between the three stimuli presented simultaneously. These results contribute to a growing body of evidence that the expected reward magnitude influences the decision to start anticipatory responding in tasks where the reward becomes available after a fixed interval, but does not alter peak times, nor the decision to stop responding on peak trials.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | B Philosophy. Psychology. Religion > BF Psychology Q Science > QL Zoology |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology | ||||
| Library of Congress Subject Headings (LCSH): | Time perception in animals, Pigeons -- Behavior, Motivation in animals, Reward (Psychology), Learning in animals | ||||
| Journal or Publication Title: | Behavioural Processes | ||||
| Publisher: | Elsevier BV | ||||
| ISSN: | 0376-6357 | ||||
| Official Date: | March 2011 | ||||
| Dates: |
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| Volume: | Volume 86 | ||||
| Number: | Number 3 | ||||
| Page Range: | pp. 359-363 | ||||
| DOI: | 10.1016/j.beproc.2011.01.003 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Natural Sciences and Engineering Research Council of Canada (NSERC), National Institute of Mental Health (U.S.) (NIMH), United States. Air Force. Office of Scientific Research (AFOSR) | ||||
| Grant number: | 38861 (NSERC); P50 MH062196 (NIMH); FA9550-07-1-0537 (AFOSR) |
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