Closed-loop ultrasonic stimulation method and system for inhibiting cortex diffusive inhibitory attack

The invention discloses a closed-loop ultrasonic stimulation method and system for inhibiting cortex diffusive inhibition attack, and belongs to the technical field of intracranial neuron regulation and detection, and the method comprises the steps: collecting a full-frequency electroencephalogram analog signal of a cerebral cortex induction window in a preset area of an experimental subject; converting the analog signal into a digital signal; a cortical diffusivity suppression number threshold value is set, an electroencephalogram activity peak value, an electroencephalogram amplitude value and frequency domain characteristics in the cerebral cortex digital signal are extracted, and whether cortical diffusivity suppression happens to the experimental subject or not is judged; when the cortical diffusivity suppression number of the experimental subject is lower than a set threshold value, calculating a current electroencephalogram phase of the experimental subject; calculating time delay between the predicted