A spike-based model of binaural sound localization |
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Authors: | Schauer C Paschke P |
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Institution: | Dept. of Neuroinformatics, Ilmenau Technical University, Germany. |
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Abstract: | This paper describes a spike-based model of binaural sound localization using interaural time differences (ITDs). To handle the problem of temporal coding and to facilitate a hardware implementation all neurons are simulated by a spike response model, which includes postsynaptic potentials (PSPs) and a refractory period. A winner-take-all (WTA) network selects the dominant source from the representation of the sound's angles of incidences, and can be biased by a multisensory support. We use simulations on real audio data to investigate the function and the practical application of the system. |
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