a, Normalized ‘boundary’–’inner’ power difference during self-navigation (‘self’) and observation (‘other’). Data show mean values ± s.e.m. from nCh = 16. Horizontal bars indicate significant differences in one-sided permutation tests for individual frequencies (P < 0.05; green, uncorrected; red, false discovery rate (FDR) corrected). b, Higher bandpower at ‘boundary’ versus ‘inner’ locations in 3–12 Hz (self, P < 0.001) and 5–8 Hz (other, P < 0.001) frequency bands. Data show mean values ± s.e.m. from nCh = 16. Asterisks denote a significant difference (P < 0.05, uncorrected) in a one-sided permutation test. c, Bandpower across room locations (top-down perspective), averaged across one channel per participant. White rectangle illustrates the ‘boundary’ versus ‘inner’ division. d, Numerically higher bandpower at ‘boundary’ versus ‘inner’ locations, shown for each participant separately. Data show mean values across channels per participant (participants 1 and 5, nCh = 3; participants 2 and 4, nCh = 4; participant 3, nCh = 2).