Motor Imagery Brain-Computer Interface in Rehabilitation of Upper Limb Motor Dysfunction After Stroke

Yongchun Jiang; Junxiao Yin; Biyi Zhao; Yajie Zhang; Tingting Peng; Wanqi Zhuang; Siqing Wang; Siqi Huang; Meilian Zhong; Yanni Zhang; Guibing Tang; Bingchi Shen; Haining Ou; Yuxin Zheng; Qiang Lin

doi:10.3791/65405

Motor Imagery Brain-Computer Interface in Rehabilitation of Upper Limb Motor Dysfunction After St...

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Neuroscience

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JoVE Journal Neuroscience

Motor Imagery Brain-Computer Interface in Rehabilitation of Upper Limb Motor Dysfunction After Stroke

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09:42 min

September 1, 2023

DOI: 10.3791/65405-v

Yongchun Jiang*^1,2,3, Junxiao Yin*⁴, Biyi Zhao^1,3,5, Yajie Zhang^1,3, Tingting Peng^1,3, Wanqi Zhuang^1,3, Siqing Wang^1,3, Siqi Huang^1,3, Meilian Zhong^1,3, Yanni Zhang^1,3, Guibing Tang^1,3, Bingchi Shen⁶, Haining Ou^1,3, Yuxin Zheng*^2,3, Qiang Lin*^2,3

¹Guangzhou Medical University, ²Department of Rehabilitation Medicine,The Seventh Affiliated Hospital of Sun Yat-sen University, ³Department of Rehabilitation Medicine,The Fifth Affiliated Hospital of Guangzhou Medical University, ⁴Clinical Medical College of Acupuncture and Rehabilitation,Guangzhou University of Traditional Chinese Medicine, ⁵School of Traditional Chinese Medicine,Jinan University, ⁶Department of Stomatology, Second Clinical Medical College,Dongguan Campus of Guangdong Medical University

Overview

This study explores the clinical application of motor imagery brain-computer interface (MI-BCI) for enhancing upper limb motor function in stroke patients. By utilizing functional near-infrared spectroscopy (fNIRS), it aims to provide insights into the mechanism and operationalization of MI-BCI interventions. The findings indicate positive effects on motor dysfunction which could guide future rehabilitation protocols.

Key Study Components

Area of Science

Neuroscience
Rehabilitation
Clinical Neuroscience

Background

Motor imagery brain-computer interfaces (MI-BCI) are emerging rehabilitation technologies for stroke patients.
Upper limb motor dysfunction is a common aftermath of stroke.
Standardizing clinical operations for MI-BCI can enhance therapeutic outcomes.

Purpose of Study

To establish a reference for the clinical operation of MI-BCI.
To evaluate the efficacy of MI-BCI in improving motor dysfunction in stroke patients.
To demonstrate the operational process and intervention effects of MI-BCI.

Methods Used

Utilized functional near-infrared spectroscopy (fNIRS) for real-time monitoring of hemoglobin concentration changes in the cerebral cortex.
Conducted assessments using Fugl-Meyer and Wolf Motor Function Tests pre- and post-MI-BCI intervention.
Followed a structured training protocol involving EEG cap placement and task settings based on patient performance.

Main Results

MI-BCI training resulted in significant improvements in both motor and cognitive functioning post-treatment.
Increased activation of key cortical areas was observed during functional assessments.
Demonstrated the adaptability of task difficulty in MI-BCI based on patient feedback and performance.

Conclusions

The study establishes MI-BCI as a viable intervention for improving motor function in stroke rehabilitation.
Findings advocate the need for additional research to refine treatment protocols and enhance efficacy.
The operational framework provided can support further studies into the neuroplastic effects of MI-BCI in stroke care.

Frequently Asked Questions

What advantages does MI-BCI offer for stroke rehabilitation?

MI-BCI provides an innovative approach to engage patients in motor rehabilitation through mental imagery, potentially enhancing recovery outcomes.

How is the MI-BCI training protocol structured?

The training involves patient education, EEG cap placement, and gradual adjustments to task difficulty based on the patient's real-time performance.

What types of data are obtained from fNIRS during the study?

fNIRS measures changes in hemoglobin concentrations, which reflect the activation of cerebral areas related to motor tasks during MI-BCI sessions.

How can MI-BCI methods be adapted for various levels of stroke severity?

The training difficulty in MI-BCI can be modulated based on individual patient assessments, ensuring personalized rehabilitation protocols.

What are some limitations of the current MI-BCI study?

Future studies are necessary to confirm the long-term efficacy of MI-BCI and to develop standardized protocols that accommodate different patient needs.

The purpose of this study is to provide an important reference for the standard clinical operation of motor imagery brain-computer interface (MI-BCI) for upper limb motor dysfunction after stroke.

This study focuses on the clinical application of MIBCI in stroke patients with moderate to severe upper limb motor dysfunction. And it provides ideas and references for the standardized clinical operation and mechanism research by demonstrating the operation process and intervention effect of MIBCI. MIBCI has present a positive effect on improving motor dysfunction in stroke patients.

However, more clinical researches of this field should be done in the future to extend more appropriate treatment protocols for this different level of research function in stroke patients. In this study, functional near-infrared spectroscopy, fNIRS, was used to monitor the concentration changes of hemoglobin and the oxygenated hemoglobin in the cerebral cortex in real time under different stimulation tasks. Thus providing imagining evidence for the clinical effect of MIBCI.

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Motor Imagery Brain-Computer Interface MI-BCI Upper Limb Motor Dysfunction Stroke Rehabilitation FNIRS Hemoglobin Concentration Cognitive Function Fugi-Meyer Assessment Wolf Motor Function Test Dorsolateral Prefrontal Cortex Primary Motor Cortex Primary Sensory Cortex Closed-loop Principle Rehabilitation Intervention