Electroencephalography tracing and linear correlation based positioning method for cerebral deep magnetic stimulation target

Abstract

The invention relates to an electroencephalography tracing and linear correlation based positioning method for a cerebral deep magnetic stimulation target. A novel way of think and a novel method forpositioning the cerebral deep magnetic stimulation target are provided from the angle of electroencephalography tracing and linear correlation. The method comprises the steps of acquiring current intensity and three-dimensional coordinates of each dipole of cerebral deep tissue through electroencephalography tracing, calculating correlation between each scalp electroencephalogram and dipoles of the cerebral deep tissue, and selecting a scalp electrode with highest correlation as a position of the cerebral deep magnetic stimulation target. The target positioning method disclosed by the invention can enable cerebral deep magnetic stimulation to be more accurate and effective, is beneficial to magnetic stimulation intervention and regulation of the cerebral deep tissue and has an important significance in brain science researches.

Description

technical field [0001] The invention relates to a method for locating a target point of deep brain magnetic stimulation. In particular, it relates to a deep brain magnetic stimulation target positioning method based on EEG traceability and linear correlation. Background technique [0002] Transcranial Magnetic Stimulation (TMS) is a non-invasive neurostimulation technique widely used in brain science research. This technology uses the changing magnetic field generated by the pulse current to act on the brain tissue to generate an induced electric field. When the induced electric field in the brain tissue area reaches or exceeds a certain threshold, it can activate or inhibit the neural activity in this area. [0003] The target of transcranial magnetic stimulation is located on the scalp. Usually, the position closest to the target stimulation cortex is selected on the scalp according to the target stimulation cortex. At the same time, in order to locate the stimulation tar...

AI Technical Summary

Problems solved by technology

Since the distance between the deep tissue and the electrodes of the scalp is not much different, it is difficult to accurately find the scalp electrodes directly related to the deep tissue, and there is often a certain degree of subjectivity. Accurate target positioning is still a difficulty in deep brain magnetic stimulation.

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