Cited by 354Neurobiology of Language and BilingualismPhonetics and Phonology ResearchNeuroscience and Music Perception

Functional integration across brain regions improves speech perception under adverse listening conditions

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Obleser, Jonas, Wise, Richard J. S., Alex Dresner, M., Scott, Sophie K.·2007·The Journal of Neuroscience

Abstract

Speech perception is supported by both acoustic signal decomposition and semantic context. This study, using event-related functional magnetic resonance imaging, investigated the neural basis of this interaction with two speech manipulations, one acoustic (spectral degradation) and the other cognitive (semantic predictability). High compared with low predictability resulted in the greatest improvement in comprehension at an intermediate level of degradation, and this was associated with increased activity in the left angular gyrus, the medial and left lateral prefrontal cortices, and the posterior cingulate gyrus. Functional connectivity between these regions was also increased, particularly with respect to the left angular gyrus. In contrast, activity in both superior temporal sulci and the left inferior frontal gyrus correlated with the amount of spectral detail in the speech signal, regardless of predictability. These results demonstrate that increasing functional connectivity between high-order cortical areas, remote from the auditory cortex, facilitates speech comprehension when the clarity of speech is reduced.

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Crossref · 10.1523/jneurosci.4663-06.2007

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Authors
Obleser, J., Wise, R. J. S., Alex Dresner, M., & Scott, S. K.
Affiliations
  • University College London (GB)
  • Imperial College London (GB)
Venue
The Journal of Neuroscience
Published
2007-02-28
Volume
27
Issue
9
Pages
2283-2289
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2076462413
Cited by
354
References
45
Citations by year
2026: 6 · 2025: 5 · 2024: 5 · 2023: 16 · 2022: 20 · 2021: 21 · 2020: 28 · 2019: 16 · 2018: 16 · 2017: 18 · 2016: 18 · 2015: 23 · 2014: 24 · 2013: 23 · 2012: 26
FWCI
10.82
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Max Planck Digital Library (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
  • Wellcome Trust (090961, 074414)
  • Medical Research Council
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Phonetics and Phonology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neuroscience and Music Perception
Keywords
speech perception, functional connectivity, angular gyrus, semantic predictability, spectral degradation, adverse listening conditions, speech understanding, prefrontal cortex, posterior cingulate cortex, superior temporal sulcus, inferior frontal gyrus
MeSH terms
Adult, Auditory Cortex, Female, Humans, Magnetic Resonance Imaging, Nerve Net, Reference Values, Semantics, Speech Perception, Prefrontal Cortex

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