What–Where–When memory in magpies (Pica pica)
What–Where–When memory in magpies (Pica pica)
复制标题
喜鹊的记忆（Pica pica）
作者：
Ann Zinkivskay;Farrah Nazir;T. Smulders
一些动物已经被证明能够记住它们在什么地方和多久以前储存或遇到的哪种食物（什么地方什么时候的记忆）。在这项研究中，我们测试了喜鹊（异食癖）是否也显示出记住过去事件的这些不同方面的证据。喜鹊把红色和蓝色的炒蛋球藏在一个装有木屑的大托盘里。他们被允许制作任意数量的缓存。然后在同一天或第二天将这些鸟放回来取回颗粒。如果他们当天回来，一种颜色的小球就会被类似大小和颜色的木珠代替，而如果他们第二天回来，另一种颜色的小球就会被替换。经过几次试验，这些鸟学会了在给定的停留时间内只寻找食物颗粒，而忽略颜色合适的珠子。在一项探针试验中，所有的东西都被移除，结果表明，鸟类坚持寻找颗粒，而不是珠子。这表明喜鹊可以记住它们在何时何地储存了哪些食物，即使这些食物只是颜色不同，并且分散在连续的缓存基质中。
Some animals have been shown to be able to remember which type of food they hoarded or encountered in which location and how long ago (what–where–when memory). In this study, we test whether magpies (Pica pica) also show evidence of remembering these different aspects of a past episode. Magpies hid red- and blue-dyed pellets of scrambled eggs in a large tray containing wood shavings. They were allowed to make as many caches as they wanted. The birds were then returned either the same day or the next day to retrieve the pellets. If they returned the same day, one colour of pellets was replaced with wooden beads of similar size and colour, while if they returned the next day this would happen to the other colour. Over just a few trials, the birds learned to only search for the food pellets, and ignore the beads, of the appropriate colour for the given retention interval. A probe trial in which all items were removed showed that the birds persisted in searching for the pellets and not the beads. This shows that magpies can remember which food item they hoarded where, and when, even if the food items only differ from each other in their colour and are dispersed throughout a continuous caching substrate.
影响因子：
1.4
作者：
Clayton, NS;Dickinson, A
通讯作者：
Dickinson, A