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Single case 4: 22-year-old woman (healthy subject) who shows a “decrease in REM/R.” For details see Figure 1. Note the longr NREM intrusions in the first and second REM phase in the AASM hypnogram. The relatively low-amplitude K-complex in the central leads at the beginning of the 30-s example is confirmed by its typical topographic distribution with a fronto-central maximum (see lower part of the Figure).
