Pigeons discriminate shapes based on topological features
Pigeons discriminate shapes based on topological features
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DOI：
10.1016/j.visres.2019.02.012
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发表时间：
2019-05
期刊：
影响因子：
1.8
通讯作者：
Arii Watanabe;Maiko Fujimoto;K. Hirai;Tomokazu Ushitani
中科院分区：
文献类型：
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作者：
Arii Watanabe;Maiko Fujimoto;K. Hirai;Tomokazu Ushitani
拓扑特征在视觉识别中的使用仅在具有全局线索优先的物种中得到证实。我们研究了具有局部线索优先权的鸽子是否使用拓扑特征作为区分不同形状的线索。拓扑组中的受试者需要根据形状是否包含一个孔来区分刺激，而伪类别组中的受试者则需要根据任意类别来区分刺激。与伪类别组相比，拓扑组在训练过程中的刺激辨别方面几乎没有改善，而拓扑组则表现出快速的改善，表明后一组的表现比死记硬背的预期要好。此外，我们的数据表明，鸽子的形状辨别是基于刺激中包含的开关特征信息。我们得出的结论是，某些具有局部线索优先权的物种能够感知拓扑特征，并且这种类型的感知可能是视觉系统的原始组成部分。
The use of topological features in visual recognition has been demonstrated only in species with global-cue precedence. We investigated whether pigeons, with local-cue precedence, use topological features as cues for discriminating different shapes. The subjects in the topology group were required to discriminate stimuli based on whether the shapes contained one or no holes, whereas the subjects in the pseudocategory group were required to discriminate stimuli based on arbitrary categories. In contrast to the pseudocategory group, which showed little improvement in stimuli discrimination over the sessions, the topology group showed rapid improvement, indicating that the latter group performed better than what was expected from rote learning. Moreover, our data suggest that shape discrimination in pigeons is based on on-off feature information contained in the stimuli. We conclude that certain species with local-cue precedence are capable of perceiving topological features and that this type of perception may be a primitive component of the visual system.