Motor imagery brain-computer interface control method based on noninvasive electrical stimulation

A control method and motion imagery technology, applied in computer components, mechanical mode conversion, electrical digital data processing, etc., can solve problems such as inability to improve users' spontaneous adjustment of SMR skills, user fatigue and discomfort, and ineffective effects, etc., and achieve relief Learning burden, low hardware resource requirements, enhanced excitability effects
CN106095086AActive Publication Date: 2016-11-09深圳中科华意科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
深圳中科华意科技有限公司
Publication Date
2016-11-09

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Abstract

The invention provides a motor imagery brain-computer interface control method based on noninvasive electrical stimulation. The control method comprises the following steps: applying anode noninvasive brain function electrical stimulation on the primary motor cortex of a user; collecting an electroencephalography original signal after the user executes a motor imagery task, and extracting an event-related desynchronization signal and / or event-related synchronization signal from the electroencephalography original signal; carrying out quantification processing on the event-related desynchronization signal and / or event-related synchronization signal to obtain the average power of the event-related desynchronization signal and / or event-related synchronization signal in a Lower[Mu] waveband, an Upper[Mu] waveband and a [Beta] waveband; carrying out feature extraction on the event-related desynchronization signal and / or event-related synchronization signal to obtain the feature values of the event-related desynchronization signal and / or event-related synchronization signal; and according to the average power, classifying the feature values to obtain a control instruction, wherein the control instruction is used for controlling a feedback training normal form.
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Description

technical field

[0001] The invention relates to the technical field of brain-computer interface control, in particular to a motor imagery brain-computer interface control method based on non-invasive electrical stimulation. Background technique

[0002] Brain-Computer Interface (BCI) is a system that can transmit information to the world outside the brain and provide alternative pathways. It is widely used in sports training, communication, entertainment and other fields. At present, the most mature BCI system is mainly based on the EEG (Electroencephalography, EEG) BCI system. This BCI system collects the EEG signal of the scalp, and extracts and classifies the features of this signal to extract the brain activity intention. signal, so as to achieve the purpose of control and communication.

[0003] BCI based on motor imagery (Motor Imagery, MI) means that users spontaneously adjust their own sensorimotor rhythm (Sensorimotor Rhythm, SMR) by imagining a certain movement pr...

Claims

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