Modular organization of adaptive colouration in flounder and cuttlefish revealed by independent component analysis
Modular organization of adaptive colouration in flounder and cuttlefish revealed by independent component analysis
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DOI：
10.1088/0954-898x/14/2/308
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发表时间：
2003-05-01
影响因子：
7.8
通讯作者：
Hanlon, RT
中科院分区：
文献类型：
--
作者：
Anderson, JC;Baddeley, RJ;Hanlon, RT
比目鱼和乌贼有一种令人印象深刻的能力，可以改变颜色，进行伪装，就乌贼而言，还可以进行交流。我们追求的假设，这些不同的模式是通过结合少数不同的模式模块创建的。独立分量分析（伊卡）是一种有效的工具，用于识别线性混合信号中的独立变异源。伊卡有两个版本，一个假设源在时间上是独立的，另一个假设源在空间上是独立的。这些揭示了皮肤着色系统的模块化，并表明模式模块如何在特定的行为环境中组合。因此伊卡可能是研究动物伪装和交流的有用工具。
Flounders and cuttlefish have an impressive ability to change colouration, for camouflage and, in the case of cuttlefish, for communication. We pursue the hypothesis that these diverse patterns are created by combining a small number of distinct pattern modules. Independent component analysis (ICA) is a powerful tool for identifying independent sources of variation in linear mixtures of signals. Two versions of ICA are used, one assuming that sources have independence over time, and the other over space. These reveal the modularity of the skin colouration system, and suggest how the pattern modules are combined in specific behavioural contexts. ICA may therefore be a useful tool for studying animal camouflage and communication.