“…The LPP may shift spatially during the course of stimuli processing (Foti et al, 2009;MacNamara et al, 2009). Previous pain-related studies have found the widespread topographical distribution of the LPP (Cheng et al, 2017;Fan et al, 2022;Langeslag & Surti, 2017;Leutgeb et al, 2014). Based on these studies, we analyzed the amplitude of LPP with the pooled electrodes distributing over the frontal-central-parietal-occipital areas, including F3, Fz, F4, FC3, FCz, FC4, C3, Cz, C4, P3, Pz, P4, PO3, POz, and PO4.…”