Evidence map›Paper›PMID 25588137›Full record

ArticleJournal of neural engineering2015

Increasing BCI communication rates with dynamic stopping towards more practical use: an ALS study.

B O Mainsah, L M Collins, K A Colwell, E W Sellers, D B Ryan, K Caves, C S Throckmorton

Open access · greenAbstract read
In one paragraph

Article in Journal of neural engineering, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
5.1field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 63 citations in OpenAlex.

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  9. Language Model-Guided Classifier Adaptation for Brain-Computer Interfaces for Communication.Conference proceedings. IEEE International Conference on Systems, Man, and Cybernetics · 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

7 authors at 2 institutions in 1 country.

B O MainsahDuke University, Department of Electrical and Computer Engineering, USA.
L M Collins
K A Colwell
E W Sellers
D B Ryan
K Caves
C S Throckmorton
Duke University · USEast Tennessee State University · US

Funding

Towards Clinical Acceptability: Enhancing the P300-based Brain-Computer InterfaceR33DC010470 · NIDCD · DUKE UNIVERSITY · PI COLLINS, LESLIE M. · 2011 to 2013
$1.6M
NIDCD NIH HHS R33 DC010470NIDCD NIH HHS R33 DC010470-03
6 · The paper itself

Abstract

objectiveThe P300 speller is a brain-computer interface (BCI) that can possibly restore communication abilities to individuals with severe neuromuscular disabilities, such as amyotrophic lateral sclerosis (ALS), by exploiting elicited brain signals in electroencephalography (EEG) data. However, accurate spelling with BCIs is slow due to the need to average data over multiple trials to increase the signal-to-noise ratio (SNR) of the elicited brain signals. Probabilistic approaches to dynamically control data collection have shown improved performance in non-disabled populations; however, validation of these approaches in a target BCI user population has not occurred. APPROACH: We have developed a data-driven algorithm for the P300 speller based on Bayesian inference that improves spelling time by adaptively selecting the number of trials based on the acute SNR of a user's EEG data. We further enhanced the algorithm by incorporating information about the user's language. In this current study, we test and validate the algorithms online in a target BCI user population, by comparing the performance of the dynamic stopping (DS) (or early stopping) algorithms against the current state-of-the-art method, static data collection, where the amount of data collected is fixed prior to online operation. MAIN

resultsResults from online testing of the DS algorithms in participants with ALS demonstrate a significant increase in communication rate as measured in bits/min (100-300%), and theoretical bit rate (100-550%), while maintaining selection accuracy. Participants also overwhelmingly preferred the DS algorithms. SIGNIFICANCE: We have developed a viable BCI algorithm that has been tested in a target BCI population which has the potential for translation to improve BCI speller performance towards more practical use for communication.

Indexed as

Event-Related Potentials, P300AdultAlgorithmsAmyotrophic Lateral SclerosisBrain-Computer InterfacesBrain MappingCommunication Devices for People with DisabilitiesComputer PeripheralsElectroencephalographyFemaleHumansInformation Storage and RetrievalMaleMiddle AgedPattern Recognition, AutomatedReproducibility of Results

Identifiers

PMID25588137
PMCPMC4631027
OpenAlexW2071985051

What OpenQuestion holds

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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.