Edelman has proposed that there are degeneracy phenomena in neural system. However, he did not discuss the modality and function about degeneracy in neuron network. In this paper, the phenomenon of degeneracy in neuron circuit of binaural localization is studied on the basis of the ordered space, and some methods of degeneracy for the neural networks are discussed. By combing the phenomenon of degeneracy with neuron coding, we can better understand the degeneracy phenomenon. Although the results we obtained are rationalistic, the Jeffress model, which is widely accepted, is covered by this circuit. Therefore, the theory proposed in the paper also has its biological basis.
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