Evidence map›Paper›PMID 30937400›Full record

ArticleCommunications biology2019

Human motor cortex relies on sparse and action-specific activation during laughing, smiling and speech production.

Markus Kern, Sina Bert, Olga Glanz, Andreas Schulze-Bonhage, Tonio Ball

Erratum issuedAbstract read
In one paragraph

Article in Communications biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
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

16 citing papers in PubMed.

  1. Article
  2. Neural synchrony links sensorimotor cortices in a network for facial motor control.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Article
  4. Phonological Representations of Auditory and Visual Speech in the Occipito-temporal Cortex and Beyond.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. The Motor Basis for Misophonia.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Markus Kern1Medical AI Lab, Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, 79106 Germany.
Sina Bert2Neurobiology and Biophysics, Faculty of Biology, University of Freiburg, Freiburg, 79104 Germany.
Olga Glanz1Medical AI Lab, Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, 79106 Germany.
Andreas Schulze-Bonhage3Epilepsy Center, Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, 79106 Germany.
Tonio Ball1Medical AI Lab, Department of Neurosurgery, Medical Center - University of Freiburg, Freiburg, 79106 Germany.ORCID 0000-0002-4993-466X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Smiling, laughing, and overt speech production are fundamental to human everyday communication. However, little is known about how the human brain achieves the highly accurate and differentiated control of such orofacial movement during natural conditions. Here, we utilized the high spatiotemporal resolution of subdural recordings to elucidate how human motor cortex is functionally engaged during control of real-life orofacial motor behaviour. For each investigated movement class-lip licking, speech production, laughing and smiling-our findings reveal a characteristic brain activity pattern within the mouth motor cortex with both spatial segregation and overlap between classes. Our findings thus show that motor cortex relies on sparse and action-specific activation during real-life orofacial behaviour, apparently organized in distinct but overlapping subareas that control different types of natural orofacial movements.

Indexed as

LaughterSmilingSpeechAdultBrain-Computer InterfacesBrain MappingElectrodes, ImplantedElectroencephalographyEpilepsyFemaleGamma RhythmHumansLipMaleMiddle AgedMotor Cortex

Identifiers

PMID30937400
PMCPMC6435746

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.