Fig. 3: Topographical changes in the spectral power of slow oscillations after sensorimotor restriction.

Topographical statistical map of the difference in SO (0.5–1.25 Hz) spectral power between the IMMO and CTRL groups during the first 20 min of NREM2 sleep (IMMO-CTRL contrast). The color bar represents the t-test values. Negative t values (blue) represent lower spectral power for the IMMO group (n = 15) compared with the CTRL group (n = 15). White areas represent the non-significant differences between groups after the Student’s t permutation test (1000 permutations). The red dots highlight the electrodes with statistical differences after correction for multiple comparisons using the Benjamini–Hochberg procedure to control the false discovery rate (Ntests = 63).