Evidence map›Paper›PMID 24099944›Full record

Trial reportJournal of neural engineering2013

Offline analysis of context contribution to ERP-based typing BCI performance.

Umut Orhan, Deniz Erdogmus, Brian Roark, Barry Oken, Melanie Fried-Oken

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of neural engineering, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Article
  2. Article
  3. Feedback Related Potentials for EEG-Based Typing Systems.Frontiers in human neuroscience · 2021
    Article
  4. INCORPORATING TEMPORAL DEPENDENCY ON ERP BASED BCI.Proceedings. IEEE International Symposium on Biomedical Imaging · 2018
    Article
  5. EEG-assisted Modulation of Sound Sources in the Auditory Scene.Biomedical signal processing and control · 2018
    Article
  6. An Active RBSE Framework to Generate Optimal Stimulus Sequences in a BCI for Spelling.IEEE transactions on signal processing : a publication of the IEEE Signal Processing Society · 2017
    Article
  7. Recursive Bayesian Coding for BCIs.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2017
    Article
  8. Article
  9. Article
  10. Review
  11. Probabilistic Simulation Framework for EEG-Based BCI Design.Brain computer interfaces (Abingdon, England) · 2016
    Article
  12. Article
  13. Article
  14. Article
  15. Review
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

5 authors.

Umut OrhanDepartment of Electrical and Computer Engineering, Northeastern University, Boston, MA, USA.
Deniz Erdogmus
Brian Roark
Barry Oken
Melanie Fried-Oken

Funding

Translational refinement of adaptive communication system for locked-in patientsR01DC009834 · NIDCD · OREGON HEALTH & SCIENCE UNIVERSITY · PI FRIED-OKEN, MELANIE · 2009 to 2024
$12.5M
NIDCD NIH HHS 5R01DC009834NIDCD NIH HHS R01 DC009834
6 · The paper itself

Abstract

objectiveWe aim to increase the symbol rate of electroencephalography (EEG) based brain-computer interface (BCI) typing systems by utilizing context information. APPROACH: Event related potentials (ERP) corresponding to a stimulus in EEG can be used to detect the intended target of a person for BCI. This paradigm is widely utilized to build letter-by-letter BCI typing systems. Nevertheless currently available BCI typing systems still require improvement due to low typing speeds. This is mainly due to the reliance on multiple repetitions before making a decision to achieve higher typing accuracy. Another possible approach to increase the speed of typing while not significantly reducing the accuracy of typing is to use additional context information. In this paper, we study the effect of using a language model (LM) as additional evidence for intent detection. Bayesian fusion of an n-gram symbol model with EEG features is proposed, and a specifically regularized discriminant analysis ERP discriminant is used to obtain EEG-based features. The target detection accuracies are rigorously evaluated for varying LM orders, as well as the number of ERP-inducing repetitions. MAIN

resultsThe results demonstrate that the LMs contribute significantly to letter classification accuracy. For instance, we find that a single-trial ERP detection supported by a 4-gram LM may achieve the same performance as using 3-trial ERP classification for the non-initial letters of words. SIGNIFICANCE: Overall, the fusion of evidence from EEG and LMs yields a significant opportunity to increase the symbol rate of a BCI typing system.

Indexed as

Brain-Computer InterfacesElectroencephalographyEvoked PotentialsFemaleHumansMalePhotic Stimulation

Identifiers

PMID24099944
PMCPMC4065780

What OpenQuestion holds

Textmetadata
LicenceTDM
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.