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Visuoauditory brain-computer interface-based consciousness state detecting method

A state of consciousness and detection method technology, applied in diagnostic recording/measurement, medical science, sensors, etc., can solve problems such as low detection accuracy of brain-computer interface, low sensitivity to disease changes, strong subjectivity, etc., to ensure real Effects of sex and effectiveness, high cost, and ease of application

Active Publication Date: 2016-01-27
华南脑控(广东)智能科技有限公司
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AI Technical Summary

Problems solved by technology

[0008] The present invention aims at the shortcomings of existing clinical diagnosis using scales and clinical experience detection that are not sensitive to changes in the condition, subjectivity is too strong, and the accuracy of single-vision or single-auditory brain-computer interface detection is too low, and provides a visual and auditory-based Conscious state detection method for brain-computer interface

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  • Visuoauditory brain-computer interface-based consciousness state detecting method
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  • Visuoauditory brain-computer interface-based consciousness state detecting method

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Embodiment Construction

[0037]The present invention will be further described below in conjunction with specific examples.

[0038] The specific conditions of the consciousness state detection method based on audio-visual brain-computer interface described in this embodiment are as follows:

[0039] 1) Interface design

[0040] The graphical user interface (GUI) used by the present invention is as figure 1 shown. When the interface was presented, the computer randomly selected 2 numbers from 0-9 (for example figure 1 6 and 8) were used as stimuli, and were randomly placed on the left and right sides of the GUI. The size of the two number keys is 6.6 cm x 9 cm, and the horizontal distance between the two number keys is 4 cm. Two speakers are placed on either side of the display. Each time the stimulus appeared, the visual stimulus was the flickering of the number keys, that is, the background color of the number keys on the screen changed from black to green, while the numbers on the keys changed...

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Abstract

The invention discloses a visuoauditory brain-computer interface-based consciousness state detecting method. The method includes the following steps of: 1) interface design; 2) signal acquisition; 3) detection; 4) data processing; and 5) result statistics and evaluation. According to the method of the invention, a visuoauditory brain-computer interface is adopted, so that the possibility of the detection of reserved cognitive function and potential consciousness can be improved. Two digital keys blink in a random order, so that visual related ERP potentials are generated, at the same time, two pieces of digital sound simultaneously appear, so that auditory related ERP potentials are generated; visual and auditory stimulus which appears simultaneously will produce a visuoauditory integration effect; Compared with a visual brain-computer interface and an auditory brain-computer interface, the method can improve the precision rate of a system and increase ERP response waveforms, and therefore, the validity and accuracy of the system can be improved, and services can be provided for consciousness state detection clinic and research.

Description

technical field [0001] The invention relates to the technical field of brain-computer interface and detection of disturbance of consciousness, in particular to a method for detecting the state of consciousness based on an audio-visual brain-computer interface. Background technique [0002] Many patients with severe brain trauma caused by car accidents or cerebral hypoxia often enter a state of disturbance of consciousness after waking up from a coma. According to the different levels of awareness of patients, such patients can be divided into multiple clinical states, such as vegetative state (vegetative state, VS), minimally conscious state (minimally conscious state, MCS) and so on. Generally speaking, patients with different degrees of disturbance of consciousness require different treatment options, so it is extremely important to accurately determine the level of disturbance of consciousness of a patient. [0003] At present, clinical evaluation of the degree of distur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0484
Inventor 李远清王斐潘家辉张瑞
Owner 华南脑控(广东)智能科技有限公司
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