Scrub jays (Aphelocoma coerulescens) remember the relative time of caching as well as the location and content of their caches
Scrub jays (Aphelocoma coerulescens) remember the relative time of caching as well as the location and content of their caches
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DOI：
10.1037/0735-7036.113.4.403
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发表时间：
1999-12-01
影响因子：
1.4
通讯作者：
Dickinson, A
中科院分区：
文献类型：
--
作者：
Clayton, NS;Dickinson, A
两项实验检验了储存食物的灌丛鸦（Aphelocoma coerulescens）是否能够记住它们何时储存特定食物以及储存的内容和地点。在实验 1 中，灌丛松鸦将易腐烂的“蜡虫”（蜡蛾幼虫）和不易腐烂的花生存放在 2 个视觉空间不同且试验独特的托盘中。如果鸟儿在 4 小时前储存了新鲜的蜡虫，它们会优先寻找新鲜的蜡虫，但很快就学会了寻找花生并避开 124 小时前储存的腐烂的蜡虫。当在测试试验中恢复之前取出食物时，也观察到了这种模式。这些结果在实验 2 中得到了重复，使用的程序将两种类型的食物缓存在同一缓存托盘的不同侧面：基于一次独特的试验经验，灌丛松鸦可以记住缓存的相对时间以及每个缓存站点中缓存的食物类型。
Two experiments examined whether food-storing scrub jays (Aphelocoma coerulescens) could remember when they cached particular food items as well as what they cached and where. In Experiment 1, scrub jays cached and recovered perishable "wax worms" (wax moth larvae) and nonperishable peanuts in 2 visuospatially distinct and trial-unique trays. The birds searched preferentially for fresh wax worms if they had cached them 4 hr earlier but rapidly learned to search for peanuts and avoid decayed wax worms that had been cached 124 hr previously. This pattern also was observed when the food items were removed before recovery on test trials. These results were replicated in Experiment 2 using a procedure in which both types of food were cached in different sides of the same caching tray: On the basis of a single, trial-unique experience, scrub jays could remember the relative time of caching as well as what type of food was cached in each cache site.