Schizophrenia early detection system based on graph neural network and brain network

Abstract

The present invention provides a schizophrenia early detection system and method based on a graph neural network and a brain network. The system comprises: an electroencephalogram signal acquisition unit used for acquiring EEG signals of 128 channels of a testee during auditory stimulation of an MMN normal form; a traceability analysis unit which is used for dividing the EEG signals into four frequency bands and performing traceability analysis on the EEG signals of each frequency band to reconstruct endogenous electrical activity of the intracerebral cortical layer; a brain network construction unit which is used for constructing a brain network of each frequency band according to the endogenous electrical activity of the intracerebral cortical layer; and a graph neural network unit which is used for extracting corresponding brain network characteristics of each frequency band from the brain network of each frequency band, wherein the graph neural network unit comprises a full-connection neural network module, and full-connection neural network module is used for receiving and classifying demographic features, cognitive features, event-related potential features and brain network features, and outputting a classification result as a detection result. The detection system can improve the early recognition accuracy of schizophrenia.

Description

technical field [0001] The invention relates to the field of early detection of schizophrenia, in particular to an early detection system for schizophrenia based on a graph neural network and a brain network. Background technique [0002] Schizophrenia is one of the most common mental illnesses characterized by disturbances in thinking, emotion, behavior, and incoordination of mental activities. At present, the cause of schizophrenia is still unclear, lacks biological indicators, and cannot be identified early. Its onset process is slow, hidden, and often occurs repeatedly. harm. [0003] The main symptoms of schizophrenia include negative symptoms, positive symptoms and cognitive impairment, and the appearance of cognitive impairment occurs earlier than the disease. Research on cognitive impairment in schizophrenia mainly focuses on higher cognitive functions, but basic sensory impairment also exists in schizophrenia and affects higher cognitive functions. The most studi...

AI Technical Summary

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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