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首页> 外文期刊>Ethology >Domestic dogs' (Canis familiaris) understanding of Projected Video Images of a Human Demonstrator in an Object-choice Task
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Domestic dogs' (Canis familiaris) understanding of Projected Video Images of a Human Demonstrator in an Object-choice Task

机译：家犬对“对象选择”任务中人类演示者的投影视频图像的理解

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Presenting animals with artificial visual stimuli is a key element of many recent behavioral experiments largely because images are easier to control and manipulate than live demonstrations. Determining how animals process images is crucial for being able to correctly interpret subjects' reactions toward these stimuli. In this study, we aimed to use the framework proposed by Fagot etal. (2010) Proc. Natl. Acad. Sci. USA 107, 519 to classify how dogs perceive life-sized projected videos. First, we tested whether dogs can use pre-recorded and hence non-interactive, video footage of a human to locate a hidden reward in a three-way choice task. Secondly, we investigated whether dogs solve this task by means of referential understanding. To achieve this, we separated the location of the video projection from the location where dogs had to search for the hidden reward. Our results confirmed that dogs can reliably use pre-recorded videos of a human as a source of information when the demonstration and the hiding locations are in the same room. However, they did not find the hidden object above the chance level when the hiding locations were in a separate room. Still, further analysis found a positive connection between the attention paid to the projection and the success rate of dogs. This finding suggests that the factor limiting dogs' performance was their attention and that with further training they might be able to master tasks involving referential understanding.
机译：向动物展示人工视觉刺激是许多近期行为实验的关键要素，很大程度上是因为图像比现场演示更易于控制和操纵。确定动物如何处理图像对于能够正确解释受试者对这些刺激的反应至关重要。在这项研究中，我们旨在使用Fagot等人提出的框架。 （2010年）过程。 Natl。学院科学美国107、519，对狗如何看待与实物大小一样的投影视频进行分类。首先，我们测试了狗是否可以使用人类预先录制的，因此是非交互式的视频镜头来确定三向选择任务中的隐藏奖励。其次，我们调查了狗是否通过参照理解来解决这一任务。为此，我们将视频投影的位置与狗不得不寻找隐藏奖励的位置分开了。我们的结果证实，当示威活动和躲藏地点位于同一房间时，狗可以可靠地使用人类预先录制的视频作为信息源。但是，当隐藏位置位于单独的房间中时，他们未在机会级别之上找到隐藏的对象。尽管如此，进一步的分析发现，对预测的关注与狗的成功率之间存在积极的联系。这一发现表明，限制狗的表现的因素是它们的注意力，并且通过进一步的训练，它们也许能够完成涉及参照理解的任务。

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