Effects of preshift small magnitude of reward received during goalbox placements on the negative contrast effect |
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Authors: | Calef Richard S Choban Michael C Glenney Katherine R Calef Ruth A Mace Errika M Cummings Theresa D |
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Affiliation: | West Virginia Wesleyan College, Buckhannon, WV 26201, USA. Calef-rs@wvwc.edu |
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Abstract: | During preshift, one experimental group of rats was given a large magnitude of food reward following a traversal of a straight alley and during a goalbox placement, while the other experimental group was given a small reward during goalbox placement and a large reward following a run. During postshift, all experimental groups were given a small reward of food following a traversal down the runway and during a goalbox placement. A control group was maintained on small reward during placements and following a traversal throughout the study. Only the group who received preshift large reward during placement and following a runway response ran slower to small reward during postshift than the control group maintained on small reward (negative contrast effect). |
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