Sensitivity to envelope and pulse timing interaural time differences in prosthetic hearing
Shiyi Fang, Fei Peng, Bruno Castellaro, Muhammad Zeeshan, Nicole Rosskothen-Kuhl, Jan Schnupp · FENS Forum 2024
Binaural cues, such as interaural time difference (ITD), are pivotal for sound localization in the auditory system. However, contemporary cochlear implant (CI) processors convey only envelope ITD, neglecting pulse-timing ITD in the temporal fine structure, possibly contributing to CI users' spatial hearing challenges.To assess CI-implanted rats' sensitivity to envelope and pulse timing ITD, we utilized a stimulus involving a 900pps pulse train modulated by a 20 Hz sine envelope, allowing independent variation of PT_ITD and ENV_ITD {-0.1, 0, 0.1 ms}. Neural activity from the inferior colliculus
ePoster · Neuroscience