Fig. 1: Experimental procedure.
From: Respiration modulates sleep oscillations and memory reactivation in humans
a During encoding, participants were presented with 120 verb-object or verb-scene pairs (counterbalanced across sessions). Memory performance was tested before and after a 120 min nap period. Each session ended with a localizer task in which participants processed a new set of object and scene images. b Hypnogram of a sample participant, showing time spent in different sleep stages across one nap. The gray shading indicates NREM sleep stages N2 and SWS. c Example of a NREM sleep segment at Cz (30 s; top row (red): EEG recording; bottom row (blue): respiration). d Example of 1/f corrected power spectrum during NREM sleep at Cz for EEG (red) and respiratory recordings (blue), as obtained by Irregular Resampling Auto-Spectral Analysis (IRASA)103. Source data are provided as a Source Data file.
