Fig. 4: Lucidity is associated with longer reaction times and increased responsiveness.
a, Distribution of reaction times from stimulus onset to response in correct trials (words and pseudowords) in NP across sleep stages. Dashed lines indicate medians. A mixed-linear model with participant as a random factor and pairwise post hoc two-sided comparisons revealed slower reaction times in lucid REM sleep compared to N1 (P < 0.0001), N2 (P = 0.0001) and REM sleep (P = 0.002). P values are corrected for multiple comparisons using the Benjamini–Hochberg procedure. b, Flowchart detailing the repartition of naps in participants with narcolepsy—the percentage of naps with at least one behavioral response is indicated and the responsive naps are further divided depending on whether participants reported a lucid dream upon awakening and whether they explicitly recalled responding during the nap. ****, P < 0.0001; ***, P < 0.001.
