Cited by 203Neurobiology of Language and BilingualismPhonetics and Phonology ResearchNeuroscience and Music Perception

Top-down and bottom-up processes in speech comprehension

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Zekveld, Adriana A., Heslenfeld, Dirk J., Festen, Joost M., Schoonhoven, Ruurd·2006·NeuroImage

Abstract

Speech comprehension includes both bottom-up and top-down processes, and imaging studies have isolated a frontal-temporal network of brain areas active during speech perception. However, the precise role of the various areas in this network during normal speech comprehension is not yet fully understood. In the present fMRI study, the signal-to-noise ratio (SNR) of spoken sentences was varied in 144 steps, and speech intelligibility was measured independently in order to study in detail its effect on the activation of brain areas involved in speech perception. Relative to noise alone, intelligible speech in noise evoked spatially extended activation in left frontal, bilateral temporal, and medial occipital brain regions. Increasing SNR led to a sigmoid-shaped increase of activation in all areas of the frontal-temporal network. The onset of the activation with respect to SNR was similar in temporal and frontal regions, but frontal activation was found to be smaller than temporal activation at the highest SNRs. Finally, only Broca's area (BA44) showed activation to unintelligible speech presented at low SNRs. These findings demonstrate distinct roles of frontal and temporal areas in speech comprehension in that temporal regions subserve bottom-up processing of speech, whereas frontal areas are more involved in top-down supplementary mechanisms.

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Crossref · 10.1016/j.neuroimage.2006.04.199

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  • Inferior frontal or premotor activations during auditory speech processing are the consequence of top-down supplementary mechanisms that constrain bottom-up speech processing in temporal regions, particularly when speech is unfamiliar or ambiguous.

    “Altogether, there was a growing perspective that inferior frontal or premotor activations during auditory speech processing were the consequence of top-down supplementary mechanisms that constrain bottom up speech processing in temporal regions (Zekveld et al., 2006), particularly when speech is unfamiliar or ambiguous (Dehaene-Lambertz et al., 2005).”

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Authors
Zekveld, A. A., Heslenfeld, D. J., Festen, J. M., & Schoonhoven, R.
Affiliations
  • Vrije Universiteit Amsterdam (NL)
  • Gemeente Amsterdam (NL)
Corresponding author
Heslenfeld, Dirk J.
Venue
NeuroImage
Publisher
Elsevier BV
Published
2006-10
Volume
32
Issue
4
Pages
1826-1836
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2154559168
Cited by
203
References
45
Citations by year
2026: 6 · 2025: 14 · 2024: 10 · 2023: 11 · 2022: 7 · 2021: 13 · 2020: 13 · 2019: 6 · 2018: 9 · 2017: 12 · 2016: 10 · 2015: 13 · 2014: 10 · 2013: 13 · 2012: 14
FWCI
3.54
Type
journal article
Language
en
Open access
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • VU Research Portal (publishedVersion, other-oa)
  • Digital Academic REpository of VU University Amsterdam (Vrije Universiteit Amsterdam) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
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 understanding, speech perception, bottom-up processing, top-down processing, signal-to-noise ratio, speech intelligibility, Broca's area, left temporal cortex, left frontal cortex, medial occipital cortex
MeSH terms
Adult, Brain Mapping, Cerebral Cortex, Female, Frontal Lobe, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Nerve Net, Occipital Lobe, Oxygen, Photic Stimulation, Psychomotor Performance, Speech Perception, Temporal Lobe, Recognition, Psychology

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