Transfer of spatial behavior between different environments: Implications for theories of spatial learning and for the role of the hippocampus in spatial learning
Transfer of spatial behavior between different environments: Implications for theories of spatial learning and for the role of the hippocampus in spatial learning
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DOI：
10.1037/0097-7403.30.2.135
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发表时间：
2004-04-01
期刊：
影响因子：
--
通讯作者：
McGregor, A
中科院分区：
文献类型：
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作者：
Pearce, JM;Good, MA;McGregor, A
在三个实验中，老鼠被要求在一个有2个长边和2个短边的竞技场的一个角落里找到一个水下平台；然后训练它们在一个新的竞技场中找到这个平台，这个新的竞技场也有2个长边和2个短边，但整体形状不同。如果新竞技场的站台在几何上与之前所在角落的几何形状相同，而不是镜像，那么就更容易找到它。最后的实验显示，海马区的损伤损害了大鼠在这些领域寻找平台的能力。结果表明，大鼠没有使用竞技场的整体形状来定位平台，而是依赖更多的局部线索，海马体在基于这些线索的导航中发挥作用。
In 3 experiments, rats were required to find a submerged platform located in 1 corner of an arena that had 2 long and 2 short sides; they were then trained to find the platform in a new arena that also had 2 long and 2 short sides but a different overall shape. The platform in the new arena was easier to find if it was in a corner that was geometrically equivalent, rather than the mirror image, of the corner where it had previously been located. The final experiment revealed that hippocampal lesions impaired rats' ability to find the platform in these arenas. The results suggest that rats did not use the overall shape of the arena to locate the platform but relied on more local cues and that the hippocampus plays a role in navigation based on these cues.