Figure 4
From: Contact heat evoked potentials and habituation measured interictally in migraineurs
Development of the amplitude from block 1 to block 4 of the volar forearm and the pooled cheek in relation to the numerical rating scale. a: Amplitude of the volar forearm of patients with migraine and healthy controls with and without performing the calculation task during contact heat evoked potential stimulation in relation to the numerical rating scale of the volar forearm. Data are shown as group means. Break of about 10 minutes between 1_4 and 2_1. b: Amplitude of the pooled cheek of patients with migraine and healthy controls with and without performing the calculation task during contact heat evoked potential stimulation in relation to the numerical rating scale of the pooled cheek. Data are shown as group means. Break of about 10 minutes between 1_4 and 2_1.