Color generalization across hue and saturation in chicks described by a simple (Bayesian) model.
Color generalization across hue and saturation in chicks described by a simple (Bayesian) model.
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通过简单（贝叶斯）模型描述的小鸡的色调和饱和度的颜色概括。
DOI：
10.1167/16.10.8
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发表时间：
2016
影响因子：
1.8
通讯作者：
Scholtyssek C
中科院分区：
文献类型：
--
作者：
Scholtyssek C
在觅食和择偶等任务中，颜色为鸟类传达了重要的信息，但在自然界中，颜色信号可能会有很大的变化，因此鸟类可能会从对感知上可分辨的颜色的概括反应中受益。因此，研究颜色概化是了解鸟类在决策过程中如何考虑阈值以上刺激变化的一种方式。以前对颜色泛化的研究主要集中在色调变化上，但自然颜色通常在饱和度上变化，这可能是一个额外的，独立的信息来源。我们将行为实验和统计建模相结合，研究了禽类雏鸡的颜色泛化是否依赖于颜色变化的色维。小鸡被训练在一个基于感受器的色彩空间中，区分在色调或饱和度维度上间隔相等距离的颜色。然后，泛化测试比较了鸟类对相同颜色维度上的熟悉颜色和新颜色的反应。为了描述泛化特征，我们引入了一个贝叶斯模型，该模型提取了一个阈值颜色距离，超过该距离，小鸡将新颜色视为与奖励训练颜色显著不同。这些阈值对于沿色调和饱和度维度的泛化是相同的，这表明对新颜色的响应取决于颜色信号的相似性和预期变化，但与颜色维度无关。
Color conveys important information for birds in tasks such as foraging and mate choice, but in the natural world color signals can vary substantially, so birds may benefit from generalizing responses to perceptually discriminable colors. Studying color generalization is therefore a way to understand how birds take account of suprathreshold stimulus variations in decision making. Former studies on color generalization have focused on hue variation, but natural colors often vary in saturation, which could be an additional, independent source of information. We combine behavioral experiments and statistical modeling to investigate whether color generalization by poultry chicks depends on the chromatic dimension in which colors vary. Chicks were trained to discriminate colors separated by equal distances on a hue or a saturation dimension, in a receptor-based color space. Generalization tests then compared the birds' responses to familiar and novel colors lying on the same chromatic dimension. To characterize generalization we introduce a Bayesian model that extracts a threshold color distance beyond which chicks treat novel colors as significantly different from the rewarded training color. These thresholds were the same for generalization along the hue and saturation dimensions, demonstrating that responses to novel colors depend on similarity and expected variation of color signals but are independent of the chromatic dimension.
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影响因子：
1.3
作者：
S. Lynn
通讯作者：
S. Lynn
DOI：
10.1098/rspb.2007.0538
发表时间：
2007-08-22
影响因子：
4.7
作者：
Ham, A. D.;Osorio, D.
通讯作者：
Osorio, D.
影响因子：
1.3
作者：
Quesada;Senar;Ruiz;Garrido;Negro
通讯作者：
Negro
家养雏鸡的颜色偏好和印记
影响因子：
2.5
作者：
E. Salzen;R. Lily;J. McKeown
通讯作者：
J. McKeown
鸟类的颜色概括
影响因子：
0.7
作者：
D. Osorio
通讯作者：
D. Osorio