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A cellular neural network model of the time-coding pathway of sound localization-hyperacuity in time

This paper discusses a cellular neural network model of the time-coding pathway of sound localization. The key feature of the model is lateral inhibition which is supposed to play a crucial role in sound localization. The possible role of this inhibition is examined on the basis of our model and several conclusions are drawn concerning the expected nature of inhibition. It is also shown that by use of inhibition a group of neurons may be much more sensitive to interaural time difference than one individual neuron. Hence, our model for the first stage of the sound localization system solves a "hyperacuity in time" problem.