Schizophrenia Early Detection System Based on Graph Neural Network and Brain Network

Abstract

Provides a system and method for early detection of schizophrenia based on graph neural network and brain network, including an EEG signal collection unit for collecting 128-channel EEG signals of testers during auditory stimulation in the MMN paradigm; traceability analysis unit , for dividing the EEG signal into four frequency bands, and performing traceability analysis on the EEG signals of each frequency band to reconstruct the endogenous electrical activity of the brain cortex; the brain network construction unit is used for according to the brain cortex The endogenous electrical activity constructs the brain network of each frequency band; the graph neural network unit is used to extract the corresponding brain network features of each frequency band from the brain network of each frequency band, and the graph neural network unit includes a fully connected neural network module, The fully connected neural network module is used to receive and classify demographic characteristics, cognitive characteristics, event-related potential characteristics and the brain network characteristics, and output classification results as detection results. The detection system can improve the accuracy of early identification of schizophrenia.

Description

technical field [0001] The invention relates to the field of early detection of schizophrenia, in particular to a system for early detection of schizophrenia based on a graph neural network and a brain network. Background technique [0002] Schizophrenia is the most common type of mental illness characterized by disorders of thinking, emotion, behavior, and incoordination of mental activities. At present, the etiology of schizophrenia is still unclear, lack of biological indicators, and cannot be identified early. Its onset process is slow, insidious, and often recurring. If it is not detected as soon as possible, the best time to seek a doctor will be delayed, and it may even cause damage to oneself and others. harm. [0003] The main symptoms of schizophrenia include negative symptoms, positive symptoms and cognitive impairment, and the appearance of cognitive impairment occurs earlier before the onset of the disease. Research on cognitive impairment in schizophrenia has...

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Problems solved by technology

[0004] The current diagnosis of schizophrenia mainly relies on the detection and identification of the symptoms described by medical staff after the clinical symptoms appear, which is highly subjective.

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