Evidence map›Paper›PMID 33352714›Full record

ArticleSensors (Basel, Switzerland)2020

Developing a Motor Imagery-Based Real-Time Asynchronous Hybrid BCI Controller for a Lower-Limb Exoskeleton.

Junhyuk Choi, Keun Tae Kim, Ji Hyeok Jeong, Laehyun Kim, Song Joo Lee, Hyungmin Kim

Open access · goldAbstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
5.0field-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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 88 citations in OpenAlex.

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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

6 authors at 3 institutions in 1 country.

Junhyuk ChoiDivision of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Korea.
Keun Tae KimCenter for Bionics, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Korea.ORCID 0000-0003-2731-3915
Ji Hyeok JeongCenter for Bionics, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Korea.ORCID 0000-0003-4200-0650
Laehyun KimCenter for Bionics, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Korea.
Song Joo LeeDivision of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Korea.
Hyungmin KimDivision of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Korea.ORCID 0000-0001-9527-0609
Bio-Medical Science (South Korea) · KRKorea Institute of Science and Technology · KRKorea University · KR

Funding

Institute of Information and Communications Technology Planning and Evaluation 2017-0-00432
6 · The paper itself

Abstract

This study aimed to develop an intuitive gait-related motor imagery (MI)-based hybrid brain-computer interface (BCI) controller for a lower-limb exoskeleton and investigate the feasibility of the controller under a practical scenario including stand-up, gait-forward, and sit-down. A filter bank common spatial pattern (FBCSP) and mutual information-based best individual feature (MIBIF) selection were used in the study to decode MI electroencephalogram (EEG) signals and extract a feature matrix as an input to the support vector machine (SVM) classifier. A successive eye-blink switch was sequentially combined with the EEG decoder in operating the lower-limb exoskeleton. Ten subjects demonstrated more than 80% accuracy in both offline (training) and online. All subjects successfully completed a gait task by wearing the lower-limb exoskeleton through the developed real-time BCI controller. The BCI controller achieved a time ratio of 1.45 compared with a manual smartwatch controller. The developed system can potentially be benefit people with neurological disorders who may have difficulties operating manual control.

Indexed as

Brain-Computer InterfacesElectroencephalographyExoskeleton DeviceHumansImaginationSupport Vector MachineEEGFBCSPhybrid BCIlower-limb exoskeletonmotor imagery

Identifiers

PMID33352714
PMCPMC7766128
OpenAlexW3115777743

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.