Abstract

The azimuthal localization of objects by echolocating bats is based on the difference of echo intensity received at the two ears, known as the interaural level difference (ILD). Mimicking the neural computation of ILD in bats, we have constructed a spike-based VLSI model of the lateral superior olive (LSO) that can successfully produce direction-dependent responses. This simple algorithm, while studied in the acoustic domain, is applicable to any localization based on direction-dependent signal attenuation differences.

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