Fig. 3
From: Novel flexible cap for application of transcranial electrical stimulation: a usability study
Violin plots of the impedance values derived from setup C (median 8.1 kΩ [white dot], inter-quartile range 7.1 kΩ [black box]) and setup R (median 4.5 kΩ [white dot], inter-quartile range 3.2 kΩ [black box]). Central black line indicates 1.5 times the inter-quartile range (IQR). Distributions of each n = 120 impedance values from two stimulation channels measured from 20 volunteers, in each three sessions