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Voice-image matching method for detecting cognitive function of child

A matching method and cognitive function technology, applied in the field of neurophysiological event-related evoked potentials, can solve problems such as strong subjectivity, time-consuming measurement, and non-targeting, so as to accurately evaluate children's speech and language functions and ensure authenticity and effectiveness, increased flexibility and targeted effects

Inactive Publication Date: 2015-05-13
GUANGZHOU RAINJET MEDICAL EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the defects of long time-consuming, too subjective and single and untargeted event-related potential stimulation materials used in existing clinical diagnosis, and provides an acoustic shadow matching method for detecting children's cognitive function

Method used

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  • Voice-image matching method for detecting cognitive function of child

Examples

Experimental program
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Effect test

Embodiment 1

[0023] The sound shadow matching method of detecting children's cognitive function described in the present embodiment, its specific situation is as follows:

[0024] 1) Stimulus screening and classification

[0025] According to the internationally accepted standard Peabody Picture Vocabulary Test PPVT method, select pictures that Chinese children can understand and accept, and then record and name the pictures with a female voice. The relationship between pictures and sounds is divided into matching and non-matching. The pictures and speech in the non-matching group are semantically inconsistent.

[0026] 2) Stimulus choreography

[0027] The picture stimulus is presented first, and then the sound stimulus is added after 500-1000 milliseconds. The picture and the sound end at the same time after 1000 milliseconds. The time interval between the two cycles was 1000-3000 ms, the matched group was divided 50% from the non-matched group, and the total number of pairs was 40-90,...

Embodiment 2

[0033] The difference from Example 1 is that in this embodiment, the sound stimulus is played first, and then the picture stimulus is added after 500-1000 milliseconds. The picture and the sound end at the same time after 1000 milliseconds. This is a cycle, and the picture and the sound end The time interval until the next sound playback was 1000-3000 milliseconds, the matched group was divided 50% from the non-matched group, and the total number of pairs was 40-90, and randomized. In signal acquisition and processing, while playing the sound, the original EEG of the subject is collected through the electrode cap, amplified by the amplifier, the amplifier signal bandwidth is 0.01-200Hz, and then classified and averaged by software, and passed by 0.1-30Hz. After filtering, observe the event-related potential N400 in the range of 350-550 ms after the picture appears.

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Abstract

The invention discloses a voice-image matching method for detecting a cognitive function of a child. The method comprises the following steps: (1) sifting and classifying stimulation; (2) arranging the stimulation; (3) collecting and processing signals. According to the voice-image matching method for detecting the cognitive function of the child, based on a human-specific second signal system, image materials and voice materials which the child is able to understand are sifted and matched, the image materials and the voice materials serve as stimulation materials of event related potential, and professional age grading is conducted according to the internationally-used standard Peabody picture vocabulary test (PPVT) method, and the voice-image matching method aims at serving for clinical applications and scientific research of children language and linguistic function. The voice-image matching method can be effectively applied to the tracking of diagnosis and therapy effects of brain functional diseases in the field of children healthcare and recovery, and also provide scientific and objective detecting data for regular graphic diagnosis to guarantee the authenticity and effectiveness of detecting results.

Description

technical field [0001] The invention relates to the technical field of neurophysiological event-related evoked potentials, in particular to an acoustic shadow matching method for detecting children's cognitive function. Background technique [0002] Pavlov believed that the most basic activity of the cerebral cortex is signal activity, and conditional stimuli can be divided into two categories in essence: one is realistic and specific stimuli, such as sound, light, electricity, taste and other stimuli, called The first signal; the other is the abstract stimulus, that is, language, called the second signal. The cortical functional system that responds to the first signal is called the first signal system, which is shared by animals and humans. The cortical functional system that responds to the second signal, called the second signal system, is unique to humans. The activity of the second signal system is the neural activity closely related to the language function of human...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 杨杰
Owner GUANGZHOU RAINJET MEDICAL EQUIP CO LTD