Exploring scoring methods for research studies: Accuracy and variability of visual and automated sleep scoring.

Sleep studies face new challenges in terms of data, objectives and metrics. This requires reappraising the adequacy of existing analysis methods, including scoring methods. Visual and automatic sleep scoring of healthy individuals were compared in terms of reliability (i.

Automatic analysis of single-channel sleep EEG: validation in healthy individuals.

Study Objective: To assess the performance of automatic sleep scoring software (ASEEGA) based on a single EEG channel comparatively with manual scoring (2 experts) of conventional full polysomnograms.

Design: Polysomnograms from 15 healthy individuals were scored by 2 independent experts using conventional R&K rules. The results were compared to those of ASEEGA scoring on an epoch-by-epoch basis.

Overnight duty impairs behaviour, awake activity and sleep in medical doctors.

Background: The impact of prolonged work cycles among senior doctors remains disputed. We evaluated the effects of overnight duty on awake activity and sleep quality in senior doctors in emergency medical specialties.

Methods: Thirty-six healthy doctors were monitored during a 2-week period including three separate 84 h on-call cycles.