Rat spatial memory and foraging on dual radial mazes
© 2023. The Psychonomic Society, Inc..
Three experiments are reported that used a new test of spatial memory in rats. The apparatus used was dual eight-arm radial mazes that were connected at one arm of each maze, with a start arm and doors to each maze. Rats could be forced to go to one maze or the other or could make a free choice between mazes. In Experiment 1, rats formed reference memory for the arm containing food on one maze but had food randomly placed on different arms over trials on the other maze. In Experiment 2, rats formed working memory for the arm containing food on one maze but not the other. In Experiment 3, food location changed randomly among trials on both mazes, but one maze contained a cue for the location of food. Rats used reference and working memory to go directly to the food arm on one maze but found food only after searching several arms on the other maze. Most importantly, when given free-choice trials rats developed a significant preference for the maze where they knew the location of food reward or found the cue indicating the location of reward. We suggest these findings may be best interpreted by rats applying two successive rules: (1) choose the maze that leads to the most immediate reward, and (2) use extramaze or intramaze cues to find reward location on the maze.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:52 |
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| Enthalten in: |
Learning & behavior - 52(2024), 1 vom: 11. März, Seite 51-59 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Roberts, William A [VerfasserIn] |
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| Anmerkungen: |
Date Completed 11.03.2024 Date Revised 11.03.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.3758/s13420-023-00592-2 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a © 2023. The Psychonomic Society, Inc. | ||
| 520 | |a Three experiments are reported that used a new test of spatial memory in rats. The apparatus used was dual eight-arm radial mazes that were connected at one arm of each maze, with a start arm and doors to each maze. Rats could be forced to go to one maze or the other or could make a free choice between mazes. In Experiment 1, rats formed reference memory for the arm containing food on one maze but had food randomly placed on different arms over trials on the other maze. In Experiment 2, rats formed working memory for the arm containing food on one maze but not the other. In Experiment 3, food location changed randomly among trials on both mazes, but one maze contained a cue for the location of food. Rats used reference and working memory to go directly to the food arm on one maze but found food only after searching several arms on the other maze. Most importantly, when given free-choice trials rats developed a significant preference for the maze where they knew the location of food reward or found the cue indicating the location of reward. We suggest these findings may be best interpreted by rats applying two successive rules: (1) choose the maze that leads to the most immediate reward, and (2) use extramaze or intramaze cues to find reward location on the maze | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Foraging | |
| 650 | 4 | |a Radial maze | |
| 650 | 4 | |a Rats | |
| 650 | 4 | |a Spatial memory | |
| 700 | 1 | |a Macpherson, Krista |e verfasserin |4 aut | |
| 700 | 1 | |a Robinson, Sophia |e verfasserin |4 aut | |
| 700 | 1 | |a Hennessy, Abagail |e verfasserin |4 aut | |
| 700 | 1 | |a Richmond, Bram |e verfasserin |4 aut | |
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