System for detecting individual transcranial alternating current stimulation current amplitude threshold and frequency band range

Abstract

The detection system of individual transcranial alternating current stimulation current amplitude threshold and frequency band range relates to the technical field of data identification, recording and processing in medical instrument and meter technology. It comprises: an upper computer which sends stimulation parameters to a stimulator, receives and stores detection information sent by the stimulator; a control keyboard which obtains stimulation sensitivity of an individual under current stimulation and transmits to the stimulator; and the stimulator which adjusts alternating stimulation current parameters, obtains a frequency band range supplement interval in a frequency adjustment stage, adjusts stimulation current amplitude value based on a fuzzy control algorithm according to a frequency band range proportion and stimulation sensitivity in an amplitude adjustment stage, and repeatedly and alternately carries out the frequency adjustment stage and the amplitude adjustment stage until the current amplitude threshold of the individual is detected or the upper limit of test time is reached. The present application is suitable for threshold detection under different frequency bands, and the current amplitude change is improved in two aspects of direction and size, which will improve the practicability and accuracy of the detection system.

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