Clinical: idiopathic restless legs syndrome (RLS), Control:
Clinical: yr, 50% ♂ Control: yr, 50% ♂
No
One all-night PSG; SR = 200 Hz; FFT w/30-sec eph on C3
Absolute sigma power (12–16 Hz) during total NREM and REM sleep, and in NREM2 and REM epochs with (a) arousals, (b) leg movements, and (c) leg movements + arousals
Two all-night PSGs (1 adaptation); SR = 128 Hz; Integrated digital filtering analysis on C3 and C4 from night 2
Sleep spindle index (SSI; 13–17 Hz) across consecutive NREM-REM sleep cycles, and during each of NREM2, NREM3, and REM sleep both overall and in consecutive sleep cycles
(1) SSI lower in PA versus controls during the 2nd and 4th NREM-REM sleep cycle; (2) SSI lower in PA vs. controls during total NREM3, and during the 2nd and 4th NREM3 cycle
Two all-night PSGs (1 adaptation); SR = 128 Hz; FFT w/avg of 5 4-sec eph on C3 and C4 from night 2
Absolute sigma power (13–17 Hz) during total NREM and REM sleep; relative power in the 2nd, 3rd, and 4th NREM and REM cycles, expressed as a percentage of power in the 1st cycle
One all-night PSG; SR = ? Hz; Auto spindle scoring on F3, C3
Sleep spindle (11–16 Hz) density during total NREM, NREM1–4 separately, and REM
(1) PD + RBD and iRBD had lower spindle density versus controls in NREM2, NREM3, and total NREM (), while PD-RBD had lower spindle density versus controls only during NREM2 and total NREM () (PD + RBD < iRBD < PD − RBD < controls); (2) no group differences during REM
? all-night PSG; SR = 256 Hz; auto spindle scoring on 19 EEG sites using data pooled from various studies/assessments
Sleep spindle (11–16 Hz) mean density and topographical distribution during NREM2
(1) RBD had 6–35% lower overall spindle density maximal on central and parietal derivations; (2) RBD had lower fast spindle density in some frontal, and all examined central, parietal, temporal, and occipital derivations; (3) RBD had higher slow spindle density in F3/4, C3/4, P3/4, O1/2, and T3/5/6
Two all-night PSGs (1 adaptation); SR = 1024 Hz; FFT w/4-sec eph across 19 EEG derivations from night 2
Relative spectral power in 0.25 Hz bins during whole-night NREM, and “high alpha” (10–14.5 Hz) during REM
(1) No group differences in sigma power during NREM; (2) NM had higher 10–14.5 Hz “high alpha” activity during REM across scalp regions, especially over the left temporo-occipital area
?: unmentioned; ♂: male; Meds at Study: participants taking medication at time of sleep study; eph: epoch; sec: second; min: minute; SR: sampling rate; Hz: Hertz; RLS: restless legs syndrome; SW: sleepwalkers; NM: nightmare sufferers; PA: combined parasomnia group; RBD: REM behaviour disorder; PD + RBD: Parkinson’s disease with RBD. Study is listed twice for providing both event analysis and spectral analysis data.
