Cited by 672Neurobiology of Language and BilingualismHearing Loss and RehabilitationPhonetics and Phonology Research

Listening Effort: How the Cognitive Consequences of Acoustic Challenge Are Reflected in Brain and Behavior

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Peelle, Jonathan E.·2018·Ear & Hearing

Abstract

Everyday conversation frequently includes challenges to the clarity of the acoustic speech signal, including hearing impairment, background noise, and foreign accents. Although an obvious problem is the increased risk of making word identification errors, extracting meaning from a degraded acoustic signal is also cognitively demanding, which contributes to increased listening effort. The concepts of cognitive demand and listening effort are critical in understanding the challenges listeners face in comprehension, which are not fully predicted by audiometric measures. In this article, the authors review converging behavioral, pupillometric, and neuroimaging evidence that understanding acoustically degraded speech requires additional cognitive support and that this cognitive load can interfere with other operations such as language processing and memory for what has been heard. Behaviorally, acoustic challenge is associated with increased errors in speech understanding, poorer performance on concurrent secondary tasks, more difficulty processing linguistically complex sentences, and reduced memory for verbal material. Measures of pupil dilation support the challenge associated with processing a degraded acoustic signal, indirectly reflecting an increase in neural activity. Finally, functional brain imaging reveals that the neural resources required to understand degraded speech extend beyond traditional perisylvian language networks, most commonly including regions of prefrontal cortex, premotor cortex, and the cingulo-opercular network. Far from being exclusively an auditory problem, acoustic degradation presents listeners with a systems-level challenge that requires the allocation of executive cognitive resources. An important point is that a number of dissociable processes can be engaged to understand degraded speech, including verbal working memory and attention-based performance monitoring. The specific resources required likely differ as a function of the acoustic, linguistic, and cognitive demands of the task, as well as individual differences in listeners’ abilities. A greater appreciation of cognitive contributions to processing degraded speech is critical in understanding individual differences in comprehension ability, variability in the efficacy of assistive devices, and guiding rehabilitation approaches to reducing listening effort and facilitating communication.

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  • There is behavioral, pupillometric, and neuroimaging evidence to suggest that cognitive and listener effort increase when listeners are faced with a condition of background noise or a degraded speech signal.

    “There is a plethora of behavioral (Heinrich & Schneider, 2011; Murphy et al., 2000; Pichora-Fuller et al., 1995), pupillometric (Kramer et al., 1997; Zekveld & Kramer, 2014; Zekveld et al., 2010), and neuroimaging (Davis & Johnsrude, 2003) evidence to suggest that cognitive and listener effort increase when listeners are faced with a condition of background noise or a degraded speech signal (Peell”

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Authors
Peelle, J. E.
Affiliations
Washington University in St. Louis (US)
Corresponding author
Peelle, Jonathan E.
Venue
Ear & Hearing
Published
2018-03
Volume
39
Issue
2
Pages
204-214
ISSN
0196-0202 (ISSN-L)
OpenAlex
W2757633771
Cited by
672
References
11
Citations by year
2026: 85 · 2025: 96 · 2024: 94 · 2023: 85 · 2022: 89 · 2021: 91 · 2020: 68 · 2019: 44 · 2018: 20
FWCI
4.04
Type
journal article
Language
en
Open access
Locations
  • Ear and Hearing (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (R01AG038490)
  • National Institute on Deafness and Other Communication Disorders (R01DC014281, R21DC015884)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Hearing Loss and Rehabilitation
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Phonetics and Phonology Research
Keywords
listening effort, cognitive demand, pupillometry, functional neuroimaging, prefrontal cortex, cingulo-opercular network, executive function, verbal working memory, performance monitoring, sentence comprehension, hearing loss, background noise, foreign accent, assistive listening devices, rehabilitation
MeSH terms
Cognition, Humans, Memory, Short-Term, Speech Perception, Neuroimaging

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