Sensory representations and pupil-indexed listening effort provide complementary contributions to multi-talker speech intelligibility.

ABSTRACT: Multi-talker speech intelligibility requires successful separation of the target speech from background speech. Successful speech segregation relies on bottom-up neural coding fidelity of sensory information and top-down effortful listening. Here, we studied the interaction between temporal processing measured using Envelope Following Responses (EFRs) to amplitude modulated tones, and pupil-indexed listening effort, as it related to performance on the Quick Speech-in-Noise (QuickSIN) test in normal-hearing adults. Listening effort increased at the more difficult signal-to-noise ratios, but speech intelligibility only decreased at the hardest signal-to-noise ratio. Pupil-indexed listening effort and EFRs did not independently relate to QuickSIN performance. However, the combined effects of

SUBMITTER: McHaney JR 

PROVIDER: S-EPMC11681126 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature