Magnetoencephalogram single auditory induction signal detection method and electronic device

Abstract

The invention provides a magnetoencephalogram single auditory induction signal detection method and an electronic device. The method comprises the steps: converting a to-be-detected brain magnetic signal into two-dimensional matrix data, sequentially taking each brain magnetic sensor as a selected sensor, and calculating the correlation coefficient of the selected sensor and each sensor in a set neighborhood; according to the two-dimensional matrix data of the selected sensor, setting the two-dimensional matrix data and the correlation coefficient of each brain magnetic sensor in the neighborhood, and calculating increasing signals of the selected sensors; obtaining a brain magnetic signal view according to the increasing signal and the position of each brain magnetic sensor; and extracting signal space distribution characteristics of the brain magnetic signal view, classifying the signal space distribution characteristics, and judging a single auditory induction signal or a noise signal contained in the to-be-detected signal. According to the method, the information of the original signal can be reserved to the maximum extent, rest information contained in the signal cannot be influenced, the detection is more accurate, and the calculation is simpler and more convenient.

Description

technical field [0001] The invention relates to the field of magnetoencephalogram feature signal recognition in the field of biological feature recognition, in particular to a method for automatically detecting a single auditory evoked signal of magnetoencephalogram and an electronic device. Background technique [0002] Magnetoencephalography can use extremely sensitive magnetic detectors, such as atomic optical pump magnetometers and superconducting quantum interferometers, to detect weak magnetic signals emitted by the human brain, and extract corresponding information from these signals to analyze the subject's brain state. The current application of magnetoencephalography mainly has two aspects: one is the division and research of different functional areas of the brain network. On the other hand, it has very important clinical applications in the diagnosis and treatment of some brain functional diseases, such as mental illness, brain injury, and autism. Especially in...

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Problems solved by technology

However, there are differences in the characteristics of event-induced signals dete

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