Visual steady-state evoked potential detection system oriented to binocular competition

A steady-state induction and potential detection technology, applied in eye testing equipment, diagnostic recording/measurement, medical science, etc., can solve problems such as inconvenient operation and complicated equipment, and achieve improved accuracy, improved independence, and reduced operational inconvenience. Effect

Active Publication Date: 2021-11-02
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Problems solved by technology

The primary processing of the amblyopic visual cortex of amblyopic patients is inhibited, and the measurement of stereo vision mainly requires the processing of the advanced visual cortex, which needs to be distinguished independently during detection. In order to achieve the rehabilitation effect, separate training and detection of stereo and plane are required. It causes complex equipment and inconvenient operation

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  • Visual steady-state evoked potential detection system oriented to binocular competition
  • Visual steady-state evoked potential detection system oriented to binocular competition
  • Visual steady-state evoked potential detection system oriented to binocular competition

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Embodiment Construction

[0024] The present invention will be further described below with reference to the accompanying drawings and in combination with preferred embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0025] Before introducing the embodiments, the terms related to the embodiments of the present invention are explained first:

[0026] Visual function: visual function is divided into three levels: simultaneous vision, fusion vision and stereo vision. The picture seen by the human eye is two-dimensional information, which is effectively processed by the two eyes together, and the nerve excitement is transmitted to the brain along the perceptual system, and the visual signals from the two eyes are analyzed in the high-level center of the brain, and synthesized into a complete three-dimensional perception impression.

[0027] Virtual Reality (VR): Virtual reality i...

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Abstract

The invention discloses a visual steady-state evoked potential detection system for binocular competition, which comprises a stimulation system and an acquisition and analysis system, and the stimulation system comprises a virtual reality head-mounted display; the acquisition and analysis system comprises an electroencephalogram extraction device, an electroencephalogram signal amplifier, an electroencephalogram signal acquisition device, an electroencephalogram signal analysis module and a result output device; the display screen is used for displaying flicker blocks of which images are alternately changed at a preset frequency and applying visual stimulation to a testee; the electroencephalogram device is used for extracting electroencephalogram signals after the testee receives visual stimulation, the extracted electroencephalogram signals are amplified by the electroencephalogram signal amplifier and then transmitted to the electroencephalogram signal collector, the electroencephalogram signals are collected and then transmitted to the electroencephalogram signal analysis module, and the electroencephalogram signals are output by the result output device after being analyzed and processed. The device is simple, is convenient to operate, can effectively improve the detection precision, and is a scheme with great application potential.

Description

technical field [0001] The invention relates to the field of visual steady-state evoked potentials, and proposes a visual steady-state evoked potential detection method for binocular competition detection. Background technique [0002] Binocular rivalry is a phenomenon in which a single, stable perception of dynamic alternation cannot be formed due to the inconsistency of the images presented by the two eyes. Binocular rivalry is of great significance in clinical, medical and psychological fields. [0003] The current research methods and measurement indicators for binocular rivalry include: duration, alternation rate, etc. At present, the method used for the measurement of binocular competition is to display stimulus pictures with different levels of difficulty and different information on the screen, and use polarized glasses to make the eyes feel the form of different picture stimuli, and at the same time assist with behavioral buttons designed for the tester to feedback...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/378A61B3/08
CPCA61B5/378A61B3/08
Inventor 董宇涵单晴岚李志德张凯
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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