Interventions
In our study, it was applied non-invasively by giving ear stimulation
using single ear, double ear and earphones specially produced for
control application (Kutlu, et al. 2020). Stimulation was done from
Vagustim device (Vagustim, Istanbul, TURKEY) at 10 Hz frequency,
biphasic, 300 microsecond pulse width and modulation mode. In the
adjustment of the flow intensity, it was applied for 20 minutes by
keeping the value that the subject felt at the comfort limit constant.