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Investigate how interaural time and level differences affect spatial hearing in cochlear implant users.

November 14, 2025Advanced ScienceOpen Access

Interactions of Interaural Time and Level Differences in Spatial Hearing with Cochlear Implants

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Experiments reveal cochlear implants impact spatial hearing in neonatally deafened rats, highlighting auditory pathways' sensitivities.

Investigate how interaural time and level differences affect spatial hearing in cochlear implant users.
Used neonatally deafened rats fitted with bilateral cochlear implants for experiments.
Trained animals to lateralize cochlear implant stimuli with informative ITDs and ILDs.
Measured sensitivity to ITDs and ILDs post-implantation.
CI rats demonstrated high sensitivity to both ITDs and ILDs in cochlear implant stimuli.
ITDs were significantly more influential than ILDs in directionality perception.
Modest ITDs could overshadow larger ILDs, indicating their critical role in spatial hearing.

Buchholz et al. (2025) studied this question.

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