Motivational control of caching behaviour in the scrub jay, Aphelocoma coerulescens
Motivational control of caching behaviour in the scrub jay, Aphelocoma coerulescens
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DOI：
10.1006/anbe.1998.0989
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发表时间：
1999-02-01
期刊：
影响因子：
2.5
通讯作者：
Dickinson, A
中科院分区：
文献类型：
--
作者：
Clayton, NS;Dickinson, A
我们使用两阶段程序研究了灌丛鸟缓存行为的动机控制，以检查预喂食和/或预缓存（第 1 阶段）对后续缓存行为（第 2 阶段）的影响。实验 1 表明，预喂食和预缓存都减少了可食用（花生）和不可食用（石头）物品的后续缓存。当两个阶段中可存储的项目相同时，缓存的减少量最大。该项目的特异性在实验 2 中使用两种食物类型（花生和狗粮粗磨）得到了证实。最终的实验表明，预喂食对后续缓存的影响也可能是特定于食物的，因为只有当两个阶段的食物类型相同时，接受了它们可以吃的粉末状食物但在第一阶段没有缓存的鸟类在第二阶段中的后续缓存才会减少。这些结果表明，缓存行为是由供给系统和独立缓存系统共同控制的，并且这种控制是由特定项目的激励价值而不是一般动机状态来调节的。 (C) 1999 动物行为研究协会。
We investigated the motivational control of caching behaviour in scrub jays using a two-stage procedure to examine the effects of prefeeding and/or precaching (stage 1) on subsequent caching behaviour (stage 2). Experiment 1 demonstrated that both prefeeding and precaching reduced the subsequent caching of both edible (peanuts) and inedible (stones) items. The reduction in caching was greatest when the items available for storing were the same in the two stages. This item specificity was confirmed in experiment 2 using two food types, peanuts and dog food kibbles. The final experiment demonstrated that the effect of prefeeding on subsequent caching can also be food specific, in that birds that received food in a powdered form that they could eat, but not cache in stage 1, showed a reduction in subsequent,caching in stage 2 only when the food type was the same in the two stages. These results suggest that caching behaviour is controlled by both the feeding system and an independent caching system, and that this control is mediated by the incentive value of the specific items rather than by a general motivational state. (C) 1999 The Association for the Study of Animal Behaviour.