NEURAL NETWORKS 14 (2001) 755-762 (2001 SPECIAL ISSUE)
SPIKE-BASED VLSI MODELLING OF THE ILD SYSTEM IN THE ECHOLATING BAT
HORIUCHI, T., HYNNA, K.
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 circuitry in the bat associated with the computation of ILD, we have constructed a spike-based VLSI model that can produce responses similar to those seen in the lateral superior olive (LSO) and some parts of the inferior colliculus (IC). We further explore some of the interesting computational consequences of the dynamics of both synapses and cellular mechanisms.
Keywords: Echolocation; Spike-based; VLSI; Azimuthal localization; Hardware model; Masking