Mechanisms of binaural remodeling in the midbrain
The inferior colliculus (IC) is the most important integrative center in the brainstem. It receives input from Nucleus laminaris. The IC sends its information via a midbrain pathway to the optic tectum and via a forebrain pathway to the auditory arcopallium (Figure). We found that across-frequency integration a loss of low frequencies in the midbrain pathway leads to an unambiguous representation of ITD (Figure). Thus, ITD is remodeled in the midbrain pathway for precise sound localization.
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