High-pitch sounds small for domestic dogs: abstract crossmodal correspondences between auditory pitch and visual size.
High-pitch sounds small for domestic dogs: abstract crossmodal correspondences between auditory pitch and visual size.
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DOI：
10.1098/rsos.211647
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发表时间：
2022-03
影响因子：
3.5
通讯作者：
Reby D
中科院分区：
文献类型：
--
作者：
Korzeniowska AT;Simner J;Root-Gutteridge H;Reby D
人类拥有将刺激的某些非冗余特征联系起来的直觉联想。小物体发出的高音（或者类似的，大物体发出的低音）。这种现象被称为跨模式对应，已经在人类的多种不同感官中被发现。有一些证据表明，非人类动物也会形成跨模态对应，但已知的例子大多局限于发声的音调和呼叫者的大小之间的联系。为了研究家养狗是否像人类一样表现出抽象的音高大小关联，我们首先训练狗在听到物体发出的声音后接近并触摸它。随后，我们重复了这个任务，但向狗展示了两个大小不同的物体，其中只有一个在播放声音。声音要么是高音调，要么是低音调，因此产生了一致性（小物体的高音调；大物体的低音调）或不一致性（相反）的试验。我们发现狗在一致和不一致的实验中反应更快。此外，他们的准确性在不一致的试验中是偶然的，但在一致的试验中显著高于机会。我们的研究结果表明，非人类动物也表现出抽象的音高对应，这表明这些对应可能不是人类独有的，而是其他物种共有的一种感觉处理特征。
Humans possess intuitive associations linking certain non-redundant features of stimuli—e.g. high-pitched sounds with small object size (or similarly, low-pitched sounds with large object size). This phenomenon, known as crossmodal correspondence, has been identified in humans across multiple different senses. There is some evidence that non-human animals also form crossmodal correspondences, but the known examples are mostly limited to the associations between the pitch of vocalizations and the size of callers. To investigate whether domestic dogs, like humans, show abstract pitch-size association, we first trained dogs to approach and touch an object after hearing a sound emanating from it. Subsequently, we repeated the task but presented dogs with two objects differing in size, only one of which was playing a sound. The sound was either high or low pitched, thereby creating trials that were either congruent (high pitch from small object; low pitch from large objects) or incongruent (the reverse). We found that dogs reacted faster on congruent versus incongruent trials. Moreover, their accuracy was at chance on incongruent trials, but significantly above chance for congruent trials. Our results suggest that non-human animals show abstract pitch sound correspondences, indicating these correspondences may not be uniquely human but rather a sensory processing feature shared by other species.
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