Table 1.

MI of the MD MUA and MI correlation (r) with different subsets of ripples

	First quartile	Second quartile	Third quartile	Fourth quartile	Correlation coefficient
MI, all ripples	−1.11 ± 0.10	−1.57 ± 0.11	−1.80 ± 0.17	−1.81 ± 0.15	r = −0.28***
MI, awake ripples	−0.94 ± 0.10	−1.26 ± 0.13	−1.35 ± 0.11	−1.30 ± 0.11	r = −0.23***
MI, spindle-uncoupled ripples	−0.93 ± 0.09	−1.30 ± 0.13	−1.20 ± 0.11	−1.20 ± 0.06	r = −0.12*
MI, spindle-coupled ripples	0.58 ± 0.10	0.46 ± 0.10	0.41 ± 0.09	0.45 ± 0.05	r = −0.06

*p < 0.05;

***p < 0.001.