Anderson J C, Baddeley R J, Osorio D, Shashar N, Tyler C W, Ramachandran V S, Crook A C, Hanlon R T
School of Biological Sciences, Sussex University, Brighton, UK.
Network. 2003 May;14(2):321-33.
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.
比目鱼和乌贼具有令人惊叹的变色能力，用于伪装，对于乌贼来说，还用于交流。我们探究了这样一个假说，即这些多样的图案是通过组合少量不同的图案模块形成的。独立成分分析（ICA）是识别信号线性混合中独立变化源的强大工具。我们使用了两种版本的ICA，一种假设源在时间上具有独立性，另一种假设源在空间上具有独立性。这些揭示了皮肤颜色系统的模块化，并表明图案模块在特定行为背景下是如何组合的。因此，ICA可能是研究动物伪装和交流的有用工具。
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