The World at the Level of a Neuron
In the last chapter, we have seen how the structure of the nervous system changes with the complexity of the organism. We have also seen how as the size of the nervous system grows, under the pressure of the “save wire” principle, the nervous system evolves from a diffuse-nerve-net type to a brain-and-cord variety. These more evolved architectures of the nervous system are associated in general with organisms with a greater range of capabilities. The correlation between brain structure and intelligence, in the final analysis, is a weak one. Therefore, we are compelled to look for more precise indicators of brain’s capabilities.
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