Evidence map›Paper›PMID 27020798›Full record

ArticleNature communications2016

The ictal wavefront is the spatiotemporal source of discharges during spontaneous human seizures.

Elliot H Smith, Jyun-you Liou, Tyler S Davis, Edward M Merricks, Spencer S Kellis, Shennan A Weiss, Bradley Greger, Paul A House, Guy M McKhann, Robert R Goodman and 4 more

Registry-linked trialAbstract read
In one paragraph

Article in Nature communications, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03629743 (Correlate of Surface Electroencephalogram), which is not on this map. Cited by 91 papers.

0numbers the graph read from it
0cells of the map it votes in
91citing 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.

NCT03629743 completednot on this mapstarted 2019, after this paper: background citation

Correlate of Surface Electroencephalogram (EEG) With Implanted EEG Recordings (ECOG)

TypeobservationalSponsorStanford UniversityRan2019 to 2026Enrolled20ConditionsAnesthesiaArmsEEG, ECOG
3 · Its place in the literature

Who cites it

91 citing papers in PubMed.

  1. Article
  2. Article
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  8. Macroscale Traveling Waves Evoked by Single-Pulse Stimulation of the Human Brain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. On brain stimulation in epilepsy.Brain : a journal of neurology · 2025
    Review
  13. Article
  14. Article
  15. Article
  16. Article
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  18. Article
  19. Intracortical recordings reveal the neuronal selectivity for bodies and body parts in the human visual cortex.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  20. Article

31 more citing papers are in PubMed but not listed here.

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

14 authors.

Elliot H SmithDepartment of Neurological Surgery, Columbia University Medical Center, New York, New York 10032, USA.
Jyun-you LiouDepartment of Physiology and Cellular Biophysics, Columbia University, New York, New York 10032, USA.
Tyler S DavisDepartment of Neurosurgery, University of Utah, Salt Lake City, Utah 84132, USA.
Edward M MerricksInstitute of Neuroscience, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
Spencer S KellisCalifornia Institute of Technology, Division of Biology and Biological Engineering, Pasadena, California 91125, USA.
Shennan A WeissDepartment of Neurology, UCLA David Geffen School of Medicine, Los Angeles, California 90095, USA.
Bradley GregerSchool of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona 85287, USA.
Paul A HouseDepartment of Neurosurgery, University of Utah, Salt Lake City, Utah 84132, USA.
Guy M McKhannDepartment of Neurological Surgery, Columbia University Medical Center, New York, New York 10032, USA.
Robert R GoodmanDepartment of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA.
Ronald G EmersonDepartment of Neurology, Weill Cornell Medical College, New York, New York 10021, USA.
Lisa M BatemanDepartment of Neurology, Columbia University Medical Center, New York, New York 10032, USA.
Andrew J TrevelyanInstitute of Neuroscience, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
Catherine A SchevonDepartment of Neurology, Columbia University Medical Center, New York, New York 10032, USA.

Funding

Seizure localization in humans: the effect of inhibitory surround on the EEGR01NS084142 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI SCHEVON, CATHERINE A · 2013 to 2022
$6.0M
CRCNS: Neural Populations, High Frequency Oscillations and EEG seizuresR01NS095368 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI SCHEVON, CATHERINE A · 2015 to 2017
$966k
Medical Research Council MR/J013250/1NINDS NIH HHS NIH/NINDS R01 NS084142NINDS NIH HHS R01 NS084142NINDS NIH HHS R01 NS095368
6 · The paper itself

Abstract

The extensive distribution and simultaneous termination of seizures across cortical areas has led to the hypothesis that seizures are caused by large-scale coordinated networks spanning these areas. This view, however, is difficult to reconcile with most proposed mechanisms of seizure spread and termination, which operate on a cellular scale. We hypothesize that seizures evolve into self-organized structures wherein a small seizing territory projects high-intensity electrical signals over a broad cortical area. Here we investigate human seizures on both small and large electrophysiological scales. We show that the migrating edge of the seizing territory is the source of travelling waves of synaptic activity into adjacent cortical areas. As the seizure progresses, slow dynamics in induced activity from these waves indicate a weakening and eventual failure of their source. These observations support a parsimonious theory for how large-scale evolution and termination of seizures are driven from a small, migrating cortical area.

Indexed as

Brain WavesComputer SimulationElectroencephalographyGamma RhythmHumansMicroelectrodesModels, NeurologicalNerve NetSeizures

Identifiers

PMID27020798
PMCPMC4820627

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Registered trials

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.