Figure 3.

Cerebello-hippocampal coherence in the δ (<4 Hz) and theta (6-12 Hz) frequency ranges is modulated across sleep states. Ai, Significant modulation across sleep states in δ coherence was found between hippocampus and Lob II/III and particularly between the hippocampus and Lob VI. Hippocampus-Crus I δ coherence remained unchanged (n = 11, Friedman test, p = 0.8438). Aii, Significant differences in δ coherence between the cerebello-hippocampal combinations were restricted to non-REM epochs, with HPC-Lob VI levels being significantly higher than other combinations. Bi, Similarly, theta coherence was significantly increased during REM sleep between HPC-Lob II/III, but remained stable across sleep states between the HPC-Crus. Bii, In contrast, no differences across cerebello-hipocampal combinations were found during any of the states analyzed. For Crus 1, n = 11; Lob VI, n = 15; Lob II/III, n = 11. For detailed statistical comparisons, see Extended Data Figure 2-1. *p < 0.05. **p < 0.01. ***p < 0.001.