Brain wave evoking method and device
A brain wave and acquisition device technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as insufficient stability and standardization of brain waves
Inactive Publication Date: 2015-12-09
陈包容
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Problems solved by technology
[0004] The invention provides a method and device for inducing brain waves to solve the existing technical problem that the brain waves generated based on evoked potentials are not stable and standardized
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[0047] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0048] refer to figure 1 , a preferred embodiment of the present invention provides a method for inducing brain waves, comprising:
[0049] Step S101, using preset training samples to stimulate the trainer's brain, and collecting sample brain waves corresponding to the training samples;
[0050] Step S102, preset the target brainwave, and extract the feature vector of the target brainwave;
[0051] Step S103, extracting the feature vector of the sample brain wave, and calculating the first similarity between the feature vector of the sample brain wave and the feature vector of the target brain wave;
[0052] Step S104, selecting brain stimulation samples for the tester to generate target brain waves according to the first similarity.
[0053]The ...
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The invention discloses a brain wave evoking method and device. The brain of a trainee is stimulated through a preset training sample, and sample brain waves corresponding to the training sample are collected; target brain waves are preset, and feature vectors of the target brain waves are extracted; feature vectors of the sample brain waves are extracted, and the first similarity between the feature vectors of the sample brain waves and the feature vectors of the target brain waves is calculated; a brain stimulating sample for making the trainee produce the target brain waves is selected according to the first similarity, the technical problem that existing brain waves produced on the basis of evoked potentials are not stable or standard enough is solved, the brain stimulating sample corresponding to the target brain waves is obtained according to the target brain waves, and therefore brain wave signals consistent with those of the preset target brain waves can be obtained; the brain stimulating sample for making the trainee produce the target brain waves is selected according to the first similarity, stability and reliability can be achieved, the standard brain waves are obtained, and therefore guarantees are provided for a subsequent brain machine interface system with brain wave signals as control signals.
Description
technical field [0001] The invention relates to the technical field of brain-computer interface, in particular to a method and device for inducing brain waves. Background technique [0002] Evoked potential (EP) is the comprehensive response of the brain to the electrical activity of external stimuli. Evoked potentials are of great importance in several disciplines including clinical medicine, electrophysiology, psychology, and cognitive science. At present, evoked potentials are mainly divided into three modes according to different stimulation methods: Auditory Evoked Potential (AEP), Visual Evoked Potential (VEP) and Somatosensory Evoked Potential (SEP). [0003] However, the brain waves generated based on the above three main evoked potentials are not stable and standardized. The brain-computer interface control system based on evoked potentials to generate brain waves has poor stability and low accuracy. Contents of the invention [0004] The invention provides a m...
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Inventor 陈包容
Owner 陈包容