Fig. 2From: REM sleep is associated with the volume of the cholinergic basal forebrain in aMCI individualsAssociations between REM sleep percentage and Ch4 volumeScatterplots illustrating the associations between log-transformed Ch4 volume (in mm3) and REM sleep percentage in the whole cohort (left) and according to cognitive status (right). Abbreviations: aMCI, amnestic mild cognitive impairment; REM, rapid eye movementBack to article page