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Colour discrimination from perceived differences by birds
Frontiers in Ecology and Evolution ( IF 2.4 ) Pub Date : 2021-05-03 , DOI: 10.3389/fevo.2021.639513
Jair E. Garcia , Detlef H. Rohr , Adrian G. Dyer

The ability of visual generalists to see and perceive displayed colour signals is essential to understanding decision making in natural environments. Whilst modelling approaches have typically considered relatively simple physiological explanations of how colour may be processed, data on key bee species reveals that colour is a complex multistage perception largely generated by opponent neural representations in a brain. Thus a biologically meaningful until of colour information must consider the psychophysics responses of an animal engaged in colour decision making. We extracted previously collected psychophysics data for a Violet-Sensitive (VS) bird, the pigeon (\textit{Columba livia}), and used a non-linear function that reliably represents the behavioural choices of hymenopteran and dipteran pollinators to produce the first behaviourally validated and biologically meaningful representation of how VS birds use colour information in a probabilistic way. The function describes how similar or dis-similar spectral information can lead to different choice behaviours in birds, even though all such spectral information is above discrimination threshold. This new representation of bird vision will enable enhanced modelling representations of how bird vision can sense and use colour information in complex environments.

中文翻译:

从鸟类感知到的差异中辨别颜色

视觉通才具有查看和感知显示的颜色信号的能力对于理解自然环境中的决策至关重要。尽管建模方法通常考虑了如何处理颜色的相对简单的生理学解释,但有关关键蜜蜂物种的数据却表明,颜色是复杂的多阶段感知,主要是由对手的神经表示在大脑中产生的。因此,直到颜色信息具有生物学意义为止,必须考虑参与颜色决策的动物的心理物理学反应。我们提取了以前收集的紫罗兰色(VS)鸟类鸽子(\ textit {Columba livia})的心理物理学数据,并使用非线性函数可靠地代表膜翅目和双翅目传粉者的行为选择,以产生第一个经过行为验证且具有生物学意义的关于VS鸟类如何以概率方式使用颜色信息的表示。该函数描述了相似或不相似的光谱信息如何导致鸟类的不同选择行为,即使所有这样的光谱信息都高于判别阈值。鸟类视觉的这种新表示形式将使在复杂环境中鸟类视觉如何感测和使用颜色信息的模型表示得以增强。该函数描述了相似或不相似的光谱信息如何导致鸟类的不同选择行为,即使所有这样的光谱信息都高于判别阈值。鸟类视觉的这种新表示形式将使在复杂环境中鸟类视觉如何感测和使用颜色信息的模型表示得以增强。该函数描述了相似或不相似的光谱信息如何导致鸟类的不同选择行为,即使所有这样的光谱信息都高于判别阈值。鸟类视觉的这种新表示形式将使在复杂环境中鸟类视觉如何感测和使用颜色信息的模型表示得以增强。
更新日期:2021-05-03
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