%B Abstracts of the 23rd Congress of the European Sleep Research Society, 13–16 September 2016, Bologna, Italy %X Objectives: Slow waves (0.5–4 Hz) of non-rapid eye movement (NREM) sleep occur and are regulated locally, in an experiencedependent manner. However, recent work in mice showed that region-specific slow waves may also occur in REM sleep. Here we investigated the presence and cortical distribution of low-frequency oscillations in human REM sleep using high-density EEG. %O Published in: Journal of Sleep Research. Special Issue. Volume 25, Issue Supplement S1 Pages 1–401 %C Bologna, Italy %D 2016 %A Giulio Bernardi %A Monica Betta %A X. Yu %A Emiliano Ricciardi %A J. Haba-Rubio %A R. Heinzer %A Pietro Pietrini %A Giulio Tononi %A Francesca Siclari %L eprints3678 %P 333-333 %I Wiley %T Low-frequency oscillations in REM-sleep: a high density EEG study