Electroencephalogram measuring device combining magneto-acoustic coupling and sound source localization and monitoring method

Abstract

The invention discloses an electroencephalogram measuring device combining magneto-acoustic coupling and sound source localization and a monitoring method. The device comprises a power supply which is in charge of supplying power to an N pole electromagnet and an S pole electromagnet, and further comprises a teslameter which is used for detecting magnetic field intensity and a low-frequency acoustic detection array module which is used for detecting a sample acoustic signal, wherein a vibration isolation table and a sound insulating box which is arranged on the vibration isolation table are arranged between the N pole electromagnet and the S pole electromagnet; and a sample is arranged in the sound insulating box. The method comprises the following steps: insulating sound of a laboratory and making the sound insulating box; determining noise of an internal environment of the sound insulating box and saving the noise in a computer; judging whether the noise of the internal environment of the sound insulating box is lower than a preset laboratory noise threshold or not; applying a sound-conducting paste on the sample and keeping the sample in the sound insulating box, and fixing a low-frequency acoustic sensor array to the tested sample; electrifying the electromagnets; acquiring corresponding information on the basis of magneto-acoustic signals and saving the information in the computer; calculating positional information of electroencephalogram signals, so as to obtain a sound distribution image; and acquiring a final sound image. According to the device and the monitoring method provided by the invention, real-time precise localization of the electroencephalogram signals can be achieved by virtue of a plurality of sensors.

Description

technical field [0001] The invention relates to an electroencephalogram measuring device. In particular, it relates to an electroencephalogram measuring device and monitoring method combining electroencephalography, magnetoacoustic coupling technology and sound source localization technology. Background technique [0002] The neurological function of the brain is at the forefront of scientific research today. Among them, the precise positioning technology of EEG signals is a difficult point in brain science research. At present, the technology used for non-invasive measurement of EEG in the field of scientific research is mainly scalp electroencephalography (EEG). Due to the low conductivity of the skull and other reasons, the spatial resolution of EEG is low, and it is impossible to accurately locate the location of the corresponding electrical signal. Other EEG measurement techniques, such as electrocorticography (ECoG) and extracellular EEG measurement technique (LFP), ...

AI Technical Summary

Problems solved by technology

At present, the technology used for non-invasive measurement of EEG in the field of scientific research is mainly scalp electroencephalography (EEG). Due to the low conductivity of the skull and other reasons, the spatial resolution of EEG is low, and it is impossible to accurately locate the location of the corresponding electrical signal.

Other EEG measurement techniques, such as electrocorticography (ECoG) and extracellular EEG measurement technique (LFP), need to open the skull for measurement, which is more harmful to the subjects and is not suitable for scientific research on the human body

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