ΔSWAK is a night-time correlate of next-day vigilance in OSA that outperforms conventional NPSG metrics.
ΔSWAK may better index next-day vigilance impairment in OSA than NPSG metrics; leaves open prospective validation before clinical use.
Changes in EEG slow waves, in particular ∆SWAK, explain inter-individual differences in PVT performance better than conventional NPSG metrics, suggesting that ΔSWAK is a night-time correlate of next-day vigilance in OSA.
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Parekh et al. (2018) studied this question.