Fig. 1From: Sleep oscillation-specific associations with Alzheimer’s disease CSF biomarkers: novel roles for sleep spindles and tauCorrelations between sleep spindle properties and CSF T-tau. Scatter plots of N2 spindle density (#/min. N2 sleep) (a), N2 spindle count (b), spindle duration (sec.) (c) and N2 fast spindle density (#/min. N2 sleep) (d) with CSF T-tau indicate significant associations at cross-section (n = 50 subjects)Back to article page