Extended Data Fig. 1: The infraslow rhythms (high autocorrelation) of the beta power are sleep dependent.

Each line represents the autocorrelation map of the beta power computed over 24 h for every species. Each red dot shows the highest peak autocorrelation amplitude (higher than the mean of the autocorrelation peaks over 24 h), reflecting the stronger infraslow rhythm. The black rectangle indicates the dark phase. Above the autocorrelation map, the level of activity is represented in pink, the muscle tone is represented in green and the eye movement density in blue. On the right, the color-coded map shows the evolution of the beta power among 30-min windows. High-beta power is coded in yellow, and low-beta power is coded in blue. On the right, the percentage of time (mean value ± s.e.m.) occupied by infraslow rhythms relative to the duration of the dark and light phase shows a predominance of infraslow during the dark period for nocturnal animals. The number of individuals and nights (replicates) per species is indicated in Supplementary Table 1 (row ‘number of individual’ and ‘total number of nights’). The gray circles represent each night (replicates) from all individuals per species. We compared the light and dark phases using a two-sided Wilcoxon signed-rank test (*P<0.05, ***P<0.0001).