title: [The effect of age on sleep spindle and K complex density].
abstract: The amount of sleep spindles and K-complexes shows a great interindividual variety of combinations, such as many or few sleep spindles and K-complexes respectively. There seems to be no direct correlation between the amount of sleep spindles and K-complexes intraindividually. In our unselected population - age range between 18 and 77 years - the mean sleep spindle density is at 2.59 +/- 1.85/min and the mean K-complex density at 1.96 +/- .96/min stage 2. The diffuse individual distribution, however, does not reflect the age factor involved. The sleep spindle and K-complex density were practically half the amount for the age group above 50 years as compared to the age group of less than 30 years.
authors.affiliation: Abteilung für Klinische Neurophysiologie im Klinikum Charlottenburg der Freien Universität, Berlin.
authors.forename: S
authors.initials: S
authors.lastname: Kubicki
authors.forename: W
authors.initials: W
authors.lastname: Scheuler
authors.forename: M
authors.initials: M
authors.lastname: Jobert
authors.forename: C
authors.initials: C
authors.lastname: Pastelak-Price
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology*; D001921:Brain / Q000502:physiology*; D004569:Electroencephalography; D005071:Evoked Potentials; D006801:Humans; D008875:Middle Aged; D012894:Sleep Stages / Q000502:physiology*
vernacular_title: Der Einfluss des Alters auf die Schlafspindel-und K-Komplex-Dichte.