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Destination selecting system based on P300 and SSVEP (Steady State Visual Evoked Potential) hybrid brain-computer interface

A technology for selecting systems and destinations, applied in the field of destination selection systems, to achieve the effects of simple induction conditions, obvious features, and flexible and simple control process

Inactive Publication Date: 2013-12-25
BEIJING INSTITUTE OF TECHNOLOGYGY
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AI Technical Summary

Problems solved by technology

[0004] The existing brain-computer interface technology for destination selection mainly uses P300 evoked potentials, and its accuracy only depends on the accuracy of the induction, detection and recognition of P300 potentials. For some people with poor P300 effects, It is difficult to achieve their expected goals by using only P300 evoked potentials

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  • Destination selecting system based on P300 and SSVEP (Steady State Visual Evoked Potential) hybrid brain-computer interface
  • Destination selecting system based on P300 and SSVEP (Steady State Visual Evoked Potential) hybrid brain-computer interface
  • Destination selecting system based on P300 and SSVEP (Steady State Visual Evoked Potential) hybrid brain-computer interface

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Embodiment Construction

[0023] The method for selecting destinations based on EEG signals described in this invention is especially suitable for people with disabilities. Those skilled in the art can further expand other assisted driving systems based on the basic equipment and principles of this invention.

[0024] The basic principle of the present invention is that when the user needs to select a destination, he or she does not need to use body or voice actions, but only needs to figure 2 The destination to be selected in the stimulus display module 201 shown ( figure 2 Medium gray letters A-I), the corresponding P300 waveform will appear in the corresponding area of ​​the brain, the EEG signal on the scalp at the corresponding position is collected through the EEG acquisition module, and the collected EEG signal is analyzed and processed through the EEG analysis and processing module , to obtain the user's true intention; then, look at figure 2 As shown in the stimulus display module 202, the...

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Abstract

The invention relates to a destination selecting system controlled by using a hybrid BCI (Brain Computer Interface) of a P300 evoked potential and an SSVEP (Steady State Visual Evoked Potential), and a relevant computing method. The system comprises an electroencephalogram acquisition module, a stimulating display module and an electroencephalogram signal processing module. According to the method provided by the invention, no body movement or language is needed, and target selection can be realized by making a user carry out a brain-computer interface task and obtaining a command by analyzing a corresponding electroencephalogram signal. A target selecting method has an important significance to the disabled. The destination selecting system belongs to comprehensive application of cognitive neuroscience, information technology field and automatic control field.

Description

technical field [0001] The invention relates to a destination selection system controlled by a hybrid brain-computer interface using P300 evoked potentials and steady-state visual evoked potentials (SSVEP). More specifically, the P300 potential and steady-state visual evoked potential (SSVEP) were used to complete target selection and command confirmation tasks, respectively. The method proposed by the present invention does not require any body movement and language, and only requires the user to perform the task of the brain-computer interface, and obtain commands through the analysis of the corresponding EEG signals to realize the selection of the destination. The invention belongs to the comprehensive application of cognitive neuroscience, information technology field and automatic control field. Background technique [0002] Many diseases cause the death of neurons and damage the neural pathways, preventing the brain from communicating with the external environment thr...

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Application Information

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IPC IPC(8): G06F3/01A61B5/0484
Inventor 毕路拯滕腾范新安连金岭丁洪生
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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