Pupil Dilation Reflects Perceptual Priorities During a Receptive Speech Task.

ABSTRACT:

Objectives

The listening demand incurred by speech perception fluctuates in normal conversation. At the acoustic-phonetic level, natural variation in pronunciation acts as speedbumps to accurate lexical selection. Any given utterance may be more or less phonetically ambiguous-a problem that must be resolved by the listener to choose the correct word. This becomes especially apparent when considering two common speech registers-clear and casual-that have characteristically different levels of phonetic ambiguity. Clear speech prioritizes intelligibility through hyperarticulation which results in less ambiguity at the phonetic level, while casual speech tends to have a more collapsed acoustic space. We hypothesized that listeners would invest greater cognitive resources while listenin

SUBMITTER: Mechtenberg H 

PROVIDER: S-EPMC10868674 | biostudies-literature | 2024 Mar-Apr 01

REPOSITORIES: biostudies-literature