EEG Lempel-Ziv complexity varies with sleep stage, but does not seem to track dream experience.
Frontiers in Human Neuroscience 2022 Arnfinn Aamodt, André Sevenius Nilsen, Rune Markhus et al. 29 citations
In a recent electroencephalography (EEG) sleep study inspired by complexity theories of consciousness, we found that multi-channel signal diversity progressively decreased from wakefulness to slow wave sleep, but failed to find any significant difference between dreaming and non-dreaming awakenings within the same sleep stage (NREM2). However, we did find that multi-channel Lempel-Ziv...