title: 'Brain activation and hypothalamic functional connectivity during human non-rapid eye movement sleep: an EEG/fMRI study'--its limitations and an alternative approach.
authors.forename: Helmut
authors.initials: H
authors.lastname: Laufs
authors.forename: Matthew C
authors.initials: MC
authors.lastname: Walker
authors.forename: Torben E
authors.initials: TE
authors.lastname: Lund
mesh_terms: D000328:Adult; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping / Q000379:methods; D004569:Electroencephalography / Q000379:methods; D006801:Humans; D007031:Hypothalamus / Q000502:physiology; D008279:Magnetic Resonance Imaging; D008297:Male; D012894:Sleep Stages / Q000502:physiology*