Fig. 1
From: From sleep staging to spindle detection: a case study on end-to-end automated sleep analysis
Overview of usual sleep analysis approaches with automated spindle detection in N2 sleep. Applying a spindle detection model to EEG data without accounting for sleep stages (A) is a simple and fully automated approach but may lead to spindles being detected in Wake or REM sleep stages, where they are biologically implausible. More sophisticated approaches involve first annotating sleep stages, either manually (B) or using an automated sleep staging model (C), to restrict spindle detection to N2 (or, additionally, N1 and N3) sleep stages.
