Study of the Effects of Transcutaneous Auricular Vagus Nerve Stimulation Combined with Slow Breathing on Insomnia

The stimulation parameters were set to a burst pulse wave with a frequency of 20Hz, 200μs,5s ON-5s OFF,and a burst frequency of 2000Hz. Electrodes were attached to the tragus and cymba conchae of the left ear,the screen of the device displays slow breathing guidance video at 0.1Hz, while the device delivered stimulation during the 5 seconds of exhalation.

Without slow breathing guidance video on the stimulation device,the stimulation parameters were set to a burst pulse wave with a frequency of 20Hz, 200μs,5s ON-5s OFF,and a burst frequency of 2000Hz. Electrodes were attached to the tragus and cymba conchae of the left ear