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Tsukuba 情動系ラットの空間的作業記憶能力の検証 Veriflcation of Spatial Working Memory Ability in Tsukuba Emotional Strain Rats 吉田, 和典 ヨシダ, カズノリ Yoshida, Kazunori Tsukuba emotional strain rats spatial working memory delayed task So far, the spatial learning ability of Tsukuba emotional strain rat was examined using the water maze which needed only reference memory and eight-arm radial maze that needed both working memory and reference memory. As a result, the performances of Tsukuba low emotional strain (L) rat were worse than those of Tsukuba high emotional strain (H) rat only in eight-arm radial maze task, and then the working memory disturbance of the L rat was suggested. The present study inserted a delay problem by eight-arm radial maze learning process, in order to verify more strictly the working memory ability in both H and L rat. Obtained results summarized as follows; although the number of the trials until insertion of the delay problem in L rat were less than those in H rat, the false choice rate in the flrst choice after the flve-minutes delay was higher, and the number of the trials until the learning criterion signiflcantly increased in L rat, and then the working memory disturbance of the L rat became clearer. And it was thought that the cause of the spatial learning disturbance of L rat might be a deflcit of the working memory capacity. 仁愛大学 2013-03-31 jpn departmental bulletin paper VoR https://doi.org/10.57426/00000659 https://jin-ai.repo.nii.ac.jp/records/665 10.57426/00000659 21853355 仁愛大学研究紀要. 人間学部篇 esearch journal of Jin-Ai University, Faculty of Human Studies. 11 11 17 https://jin-ai.repo.nii.ac.jp/record/665/files/BD00010263_001.pdf application/pdf 1.1 MB 2022-10-06