Input-related demands: vocoded sentences evoke different pupillometrics and subjective listening effort than sentences in speech-shaped noise

Nicholas P. Giuliani; Soumya Venkitakrishnan; Yu-Hsiang Wu

doi:10.1080/14992027.2022.2150901

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Input-related demands: vocoded sentences evoke different pupillometrics and subjective listening effort than sentences in speech-shaped noise

Journal article

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Input-related demands: vocoded sentences evoke different pupillometrics and subjective listening effort than sentences in speech-shaped noise

Nicholas P. Giuliani, Soumya Venkitakrishnan and Yu-Hsiang Wu

International journal of audiology, Vol.63(3), pp.199-206

03/2024

DOI: 10.1080/14992027.2022.2150901

PMCID: PMC10947987

PMID: 36519812

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https://pmc.ncbi.nlm.nih.gov/articles/PMC10947987/pdf/nihms-1868656.pdfView

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Abstract

The Framework for Effortful Listening (FUEL) suggests five input-related demands can alter listening effort: source, transmission, listener, message and context factors. We hypothesised that vocoded sentences represented a source factor degradation and sentences in speech-shaped noise represented a transmission factor degradation. We used pupillometry and a subjective scale to examine our hypothesis. Participants listened to vocoded sentences and sentences in speech-shaped noise at several difficulty levels designed to produce similar word recognition abilities; they also listened to unprocessed sentences. Within-participant pupillometrics and subjective listening effort were analysed. Post-hoc analyses were performed to examine if word recognition accuracy differentially influenced pupil responses. Twenty young adults with normal hearing. Baseline pupil diameter was significantly smaller, peak pupil dilation was significantly larger, peak pupil dilation latency was significantly shorter, and subjective listening effort was significantly greater for the vocoded sentences than the sentences-in-noise. Word recognition ability also affected pupillometrics, but only for the vocoded sentences. Our findings suggest that source factor degradations result in greater listening effort than transmission factor degradations. Future research should address how clinical interventions tailored towards different input-related demands may lead to reduced listening effort and improve patient outcomes.

input-related demands

Listening effort

pupillometrics

pupillometry

vocoded

Details

Title: Subtitle: Input-related demands: vocoded sentences evoke different pupillometrics and subjective listening effort than sentences in speech-shaped noise
Creators: Nicholas P. Giuliani - Department of Otolaryngology, University of Iowa Hospitals and Clinics
Soumya Venkitakrishnan - Department of Communication Sciences and Disorders, University of Iowa
Yu-Hsiang Wu - University of Iowa
Resource Type: Journal article
Publication Details: International journal of audiology, Vol.63(3), pp.199-206
DOI: 10.1080/14992027.2022.2150901
PMID: 36519812
PMCID: PMC10947987
NLM abbreviation: Int J Audiol
ISSN: 1499-2027
eISSN: 1708-8186
Publisher: Taylor & Francis
Grant note: DOI: 10.13039/100009157, name: National Institute on Disability, Independent Living, and Rehabilitation Research
Language: English
Electronic publication date: 12/14/2022
Date published: 03/2024
Academic Unit: Communication Sciences and Disorders; Otolaryngology
Record Identifier: 9984332736902771

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