Abstract
Rats were runway trained with sequences of rewards that changed in 3 phases. In Phase 1 (24 days), the sequences were NP, SNP’, and P’SNP’ (n = 3), or IMS’, PNS’, and S’PNS’, where P and P’ refer to 4 and 8 plain Noyes pellets, and S and S’ are 4 and 8 sucrose pellets. N was a 30-s confinement in the goal without reward. In Phase 2 (14 days) the animals were trained either SNP’ or PNS’ depending upon compatibility with the Phase 1 training series. A test for control of performance by reward-memory associations or position associations occurred in Phase 3 (2 days). The test series was a transfer NNN. Controls were not trained in Phase 1, but received training in Phase 2 (24 days) with either SNP’ (n = 3) or PNS’ (n = 3). In Phases 1 and 2, responding was slower on N trials than on rewarded trials. In Phase 3 controls responded slower on the second trial of NNN than on the initial or final trials. The animals trained in all 3 phases showed either the same pattern as the controls in the NNN test (n = 4) or approached all 3 NNN trials rapidly (n = 2). The findings illustrate the difficulty of blocking position learning by training with reward-memory associations.
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This work was supported by a Grants and Research Funding grant from Southeast Missouri State University. We thank Courtney M. Eklund for her assistance in data collection.
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Burns, R.A., Johnson, K.S. An Attempt at Blocking of Position Learning by Training with Reward-Memory Associations. Psychol Rec 56, 569–576 (2006). https://doi.org/10.1007/BF03396034
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DOI: https://doi.org/10.1007/BF03396034