Fig. 1 (abstract O14).From: 12th European Headache Federation Congress jointly with 32nd National Congress of the Italian Society for the Study of HeadachesSummary of the data. A) Experimental timeline. B) Electrical Threshold and KCl-induced repetitive SDs assessment. C) Effects of different nVNS protocol on SD susceptibility. D) Effects of 4 weeks daily nVNS on SD susceptibility. Graphs shows Mean ± SE.Back to article page