A spike-based model of binaural sound localization.
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.
Schauer
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Dept. of Neuroinformatics, Ilmenau Technical University, Germany.
Paschke
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D000161:Acoustic Stimulation; D000200:Action Potentials / Q000502:physiology*; D000818:Animals; D001288:Attention; D003198:Computer Simulation; D003202:Computers, Analog; D006801:Humans; D008959:Models, Neurological; D009475:Neurons, Afferent / Q000502:physiology; D009622:Noise; D011930:Reaction Time / Q000502:physiology; D012032:Refractory Period, Electrophysiological / Q000502:physiology; D012984:Software; D013017:Sound Localization / Q000502:physiology*; D013067:Speech Perception; D013569:Synapses / Q000502:physiology