Memory systems in the rat: effects of reward probability, context, and congruency between working and reference memory
| Autor: | Hayden MacDonald, Nicole A. Guitar, Heidi L. Marsh, William A. Roberts |
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| Rok vydání: | 2016 |
| Předmět: |
Male
Time Factors Radial maze Experimental and Cognitive Psychology Context (language use) Memory systems 03 medical and health sciences 0302 clinical medicine Reward Animals Rats Long-Evans 0501 psychology and cognitive sciences 050102 behavioral science & comparative psychology Maze Learning Ecology Evolution Behavior and Systematics Spatial Memory Forgetting Behavior Animal Working memory 05 social sciences Retention Psychology Rats Interval (music) Memory Short-Term Reference memory Test phase Psychology Social psychology 030217 neurology & neurosurgery Cognitive psychology |
| Zdroj: | Animal Cognition. 19:593-604 |
| ISSN: | 1435-9456 1435-9448 |
| DOI: | 10.1007/s10071-016-0964-7 |
| Popis: | The interaction of working and reference memory was studied in rats on an eight-arm radial maze. In two experiments, rats were trained to perform working memory and reference memory tasks. On working memory trials, they were allowed to enter four randomly chosen arms for reward in a study phase and then had to choose the unentered arms for reward in a test phase. On reference memory trials, they had to learn to visit the same four arms on the maze on every trial for reward. Retention was tested on working memory trials in which the interval between the study and test phase was 15 s, 15 min, or 30 min. At each retention interval, tests were performed in which the correct WM arms were either congruent or incongruent with the correct RM arms. Both experiments showed that congruency interacted with retention interval, yielding more forgetting at 30 min on incongruent trials than on congruent trials. The effect of reference memory strength on the congruency effect was examined in Experiment 1, and the effect of associating different contexts with working and reference memory on the congruency effect was studied in Experiment 2. |
| Databáze: | OpenAIRE |
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