highly significantP < 0.0001
For both genotypes, delta power in both baseline and recovery from SD could be reliably predicted on the basis of sleep-wake history (Figure 1 ), which is underscored by the highly significant correlations between empirical and simulated data (r = 0.91 and 0.87 for cry1,2 +/+ and cry1,2 -/- , respectively, P < 0.0001 for both genotypes).