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LSO, MSO, and DCN converge in the central nucleus of the IC (ICC).

Horizontal localizations are population-coded in the central nucleus of the mustache bat inferior colliculus.

Rucci et al.'s system comprises artificial neural populations modeling MSO (aka. the nucleus laminaris), the central nucleus of the inferior colliculus (ICc), the external nucleus of the inferior colliculus (ICx), the retina, and the superior colliculus (SC, aka. the optic tectum). The population modeling the SC is split into a sensory and a motor subpopulation.

In Rucci et al.'s system, the MSO is modeled by computing Fourier transforms for each of the auditory signals. The activity of the MSO neurons is then determined by their individual preferred frequency and ITD and computed directly from the Fourier-transformed data.

In Rucci et al.'s model, neural weights are updated between neural populations modeling

  • ICC and ICx
  • sensory and motor SC.

The shift in the auditory map in ICx comes with changed projections from ICc to ICx.