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- W2077882998 abstract "Abstract The effect of reward on the formation and retention of short-term memory traces was examined in the radial maze. In Experiment 1, overtrained rats (n=12) made fewer errors (0.45 errors/trial) in an empty than in a baited 12-arm maze (1.19 errors/trial). In Experiment 2, two-min interval between the first six and second six choices only slightly increased error incidence in rewarded trials (1.33 errors/trial), but significantly deteriorated performance in non-rewarded trials (2.48 errors/trial). In Experiment 3, restricting the reward and non-reward conditions to the first six (R-N) or last six (N-R) choices of a trial only slightly impaired performance (about 1.5 errors/trial). In Experiment 4, rats were rewarded or non-rewarded in the first six choices made in maze A or in the second six choices performed in the similar maze B. The performances in the second six choices were close to chance in the AN-BN and AR-BN conditions (2.58 errors/trial) and intermediate in the AR-BR and AN-BR conditions (1.91 and 2.04 errors/trial, respectively). The positive effect of reward was not eliminated by the change of apparatus and cannot be due, therefore, to more intense scent marking. It is concluded that anticipated or accomplished consummatory activity improves efficiency of the working memory." @default.
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- W2077882998 date "1981-08-01" @default.
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- W2077882998 title "Reward improves working memory of rats in the radial maze" @default.
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- W2077882998 doi "https://doi.org/10.1016/0031-9384(81)90259-6" @default.
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