Duration of dogs' (Canis familiaris) working memory in search for disappearing objects
Duration of dogs' (Canis familiaris) working memory in search for disappearing objects
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DOI：
10.1007/s10071-002-0157-4
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发表时间：
2003-03-01
期刊：
影响因子：
2.7
通讯作者：
Landry, F
中科院分区：
文献类型：
--
作者：
Fiset, S;Beaulieu, C;Landry, F
两个实验探讨了狗的工作记忆的持续时间在客体永久性任务：延迟之间的一个移动的物体消失在一个盒子和动物开始搜索。在实验1中，以0、10、30和60 s的保留间隔对狗进行测试。结果显示，狗的准确性下降的功能的保留时间间隔的长度，但保持以上的机会，为每个保留时间间隔。在实验2中，与新的主题，更长的保留间隔（0，30，60，120，和240秒）的狗。结果重复了实验I的发现，并显示狗的准确性仍然高于机会水平，延迟高达240 s。在这两个实验中，错误的分析也表明，狗搜索作为一个功能的接近目标框，并没有受到审判间的积极干预。在讨论中，我们探讨了不同的替代方案来解释为什么狗对隐藏物体的搜索行为作为保留间隔的函数而减少。
Two experiments explored the duration of dogs' working memory in an object permanence task: a delay was introduced between the disappearance of a moving object behind a box and the beginning of the search by the animal. In experiment 1, the dogs were tested with retention intervals of 0, 10, 30, and 60 s. Results revealed that the dogs' accuracy declined as a function of the length of the retention interval but remained above chance for each retention interval. In experiment 2, with new subjects, longer retention intervals (0, 30, 60, 120, and 240 s) were presented to the dogs. Results replicated findings from experiment I and revealed that the dogs' accuracy remained higher than chance level with delays up to 240 s. In both experiments, the analysis of errors also showed that the dogs searched as a function of the proximity of the target box and were not subject to intertrial proactive interference. In the discussion, we explore different alternatives to explain why dogs' search behaviour for hidden objects decreased as a function of the retention intervals.