Evidence map›Paper›PMID 31889007›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2020

Lip-Reading Enables the Brain to Synthesize Auditory Features of Unknown Silent Speech.

Mathieu Bourguignon, Martijn Baart, Efthymia C Kapnoula, Nicola Molinaro

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
10.5field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 104 citations in OpenAlex.

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  4. Neocortical and Hippocampal Theta Oscillations Track Audiovisual Integration and Replay of Speech Memories.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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  16. Fast and Slow Rhythms of Naturalistic Reading Revealed by Combined Eye-Tracking and Electroencephalography.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
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  18. Differential Auditory and Visual Phase-Locking Are Observed during Audio-Visual Benefit and Silent Lip-Reading for Speech Perception.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 4 institutions in 4 countries.

Mathieu BourguignonBasque Center on Cognition, Brain and Language (BCLB), 20009 San Sebastian, Spain, mabourgu@ulb.ac.be.ORCID 0000-0003-1694-5087
Martijn BaartBasque Center on Cognition, Brain and Language (BCLB), 20009 San Sebastian, Spain.
Efthymia C KapnoulaBasque Center on Cognition, Brain and Language (BCLB), 20009 San Sebastian, Spain.
Nicola MolinaroBasque Center on Cognition, Brain and Language (BCLB), 20009 San Sebastian, Spain.ORCID 0000-0002-7549-6042
Basque Center on Cognition, Brain and Language · ESIkerbasque · ESTilburg University · NLUniversité Libre de Bruxelles · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lip-reading is crucial for understanding speech in challenging conditions. But how the brain extracts meaning from, silent, visual speech is still under debate. Lip-reading in silence activates the auditory cortices, but it is not known whether such activation reflects immediate synthesis of the corresponding auditory stimulus or imagery of unrelated sounds. To disentangle these possibilities, we used magnetoencephalography to evaluate how cortical activity in 28 healthy adult humans (17 females) entrained to the auditory speech envelope and lip movements (mouth opening) when listening to a spoken story without visual input (audio-only), and when seeing a silent video of a speaker articulating another story (video-only). In video-only, auditory cortical activity entrained to the absent auditory signal at frequencies <1 Hz more than to the seen lip movements. This entrainment process was characterized by an auditory-speech-to-brain delay of ∼70 ms in the left hemisphere, compared with ∼20 ms in audio-only. Entrainment to mouth opening was found in the right angular gyrus at <1 Hz, and in early visual cortices at 1-8 Hz. These findings demonstrate that the brain can use a silent lip-read signal to synthesize a coarse-grained auditory speech representation in early auditory cortices. Our data indicate the following underlying oscillatory mechanism: seeing lip movements first modulates neuronal activity in early visual cortices at frequencies that match articulatory lip movements; the right angular gyrus then extracts slower features of lip movements, mapping them onto the corresponding speech sound features; this information is fed to auditory cortices, most likely facilitating speech parsing.

Indexed as

LipreadingAcoustic StimulationAuditory CortexFemaleHumansMagnetoencephalographyMalePattern Recognition, VisualSound SpectrographySpeech PerceptionYoung Adultaudiovisual integrationlip-readingmagnetoencephalographysilent speechspeech entrainment

Identifiers

PMID31889007
PMCPMC6989012
OpenAlexW2995028981

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.