Attention Mobilization as a Modulator of Listening Effort: Evidence From Pupillometry.

ABSTRACT: Listening to speech in noise can require substantial mental effort, even among younger normal-hearing adults. The task-evoked pupil response (TEPR) has been shown to track the increased effort exerted to recognize words or sentences in increasing noise. However, few studies have examined the trajectory of listening effort across longer, more natural, stretches of speech, or the extent to which expectations about upcoming listening difficulty modulate the TEPR. Seventeen younger normal-hearing adults listened to 60-s-long audiobook passages, repeated three times in a row, at two different signal-to-noise ratios (SNRs) while pupil size was recorded. There was a significant interaction between SNR, repetition, and baseline pupil size on sustained listening effort. At lower baseline pupil size

SUBMITTER: Johns MA 

PROVIDER: S-EPMC11015766 | biostudies-literature | 2024 Jan-Dec

REPOSITORIES: biostudies-literature