An analysis with identical parameters was repeated for the NREM (Table 4B and Figure 5A ) segments, which revealed significant main effects of DAYS ( F (5, 35) = 10.905; p < 0.00001; η p 2 = 0.61), HOURS ( F (4, 28) = 4.214; p = 0.00854; η p 2 = 0.37) and their interaction ( F (20, 140) = 2.624; p = 0.00053; η p 2 = 0.27) was only marginally significant; post hoc tests are reported in Appendix A (Table A4 ).
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