A method to assess cortical excitability after transcranial direct current stimulation

Abstract

A method for evaluating the excitability of cerebral cortex after transcranial direct current stimulation, comprising: performing transcranial direct current stimulation on a subject; The obtained EEG data before and after stimulation were processed separately to obtain the whole-brain EEG activation index used to evaluate the excitability of the cerebral cortex after transcranial direct current stimulation. The invention detects the change of cerebral cortex excitability after transcranial direct current stimulation through EEG, and obtains quantitative parameters that can evaluate the effect of transcranial direct current stimulation on cerebral cortex excitability regulation by extracting and calculating EEG characteristics, which is the effect of tDCS on cerebral cortex nerves. The moderating effect of meta-activities provides objective evaluation indicators. The invention not only helps to deeply understand its regulation mechanism, but also provides objective basis for the selection and formulation of parameters such as stimulation mode and stimulation measurement.

Description

technical field [0001] The invention relates to a method for evaluating the excitability of the cerebral cortex. In particular, it relates to a method for assessing the excitability of the cerebral cortex following transcranial direct current stimulation. Background technique [0002] Transcranial Direct Current Stimulation (tDCS) is a new, non-invasive technology that uses weak current (1-2mA) to regulate the activity of neurons in the cerebral cortex. It increases (promotes) or decreases (inhibits) neuronal synaptic transmission activity according to the polarity of direct current and the frequency of neural discharge, so as to achieve the purpose of regulating brain activity. Studies have shown that tDCS intervention can enhance motor learning or memory, and it can also be used for cognitive or motor neurorehabilitation. However, the technical means for tDCS to regulate the effect of cerebral cortex are very limited at present. Quantitative monitoring of the effect of t...

AI Technical Summary

Problems solved by technology

However, the technical means for tDCS to regulate the effect of cerebral cortex are very limited at present. Quantitative monitoring of the effect of tDCS on the regulation of cerebral cortex neuron activity is not only helpful for a deep understanding of its regulation mechanism, but also for the selection of parameters such as stimulation mode and stimulation measurement. provide an objective basis for formulating

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