AUTHOR=Sayegh Riziq , Aubie Brandon , Faure Paul A. TITLE=Dichotic sound localization properties of duration-tuned neurons in the inferior colliculus of the big brown bat JOURNAL=Frontiers in Physiology VOLUME=Volume 5 - 2014 YEAR=2014 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2014.00215 DOI=10.3389/fphys.2014.00215 ISSN=1664-042X ABSTRACT=
Electrophysiological studies on duration-tuned neurons (DTNs) from the mammalian auditory midbrain have typically evoked spiking responses from these cells using monaural or free-field acoustic stimulation focused on the contralateral ear, with fewer studies devoted to examining the electrophysiological properties of duration tuning using binaural stimulation. Because the inferior colliculus (IC) receives convergent inputs from lower brainstem auditory nuclei that process sounds from each ear, many midbrain neurons have responses shaped by binaural interactions and are selective to binaural cues important for sound localization. In this study, we used dichotic stimulation to vary interaural level difference (ILD) and interaural time difference (ITD) acoustic cues and explore the binaural interactions and response properties of DTNs and non-DTNs from the IC of the big brown bat (