350 rub
Journal Neurocomputers №2 for 2010 г.
Article in number:
Study of input jitter influence on interaural time difference sensitivity of EI neuron population
Keywords: sound source localization interaural time differences binaural hearing system neural population coding EI neurons
Authors:
V. A. Vasilkov, R. A. Tikidji-Hamburyan
Abstract:
In this paper, another biologically inspired neural mechanism underlying interraural time differences (ITDs) detection is examined. The study is based on the neural network model that simulates the activity of two symmetric populations of auditory binaural EI neurons under dichotic stimulation. To increase biological plausibility of modeling results neural network is comparable in size to the biological prototype and a single element of proposed network. The behavior of the network model in the presence of input jitter is considered, and the robustness of the proposed mechanism to such random travel time differences of ipsi- and contralateral spikes is shown. The results of the modeling also indicate stable ITD detection in case of random (normal) distribution of synaptic weight for both populations, and this fact provides computational evidence that suggested mechanism is applicable to biological neural population without precise tuning of synaptic weights.
Pages: 65-72
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