title: [Realization of a system which permits automatic analysis of sleep of infants (2-12 months)].
abstract: We have developed a system which permits automatic analysis of sleep of infants from 2 to 12 months of age. It is based on the calculation of a score on the basis of 6 parameters weighted according to their importance in determining the different phases of sleep. We use 3 EEG parameters derived from spectral analysis of the Cz-Oz derivation: total spectral energy (Hjorth activity), energy of the delta band, and energy of the beta band, and 3 polygraphic parameters: variability of muscle activity in each minute, variability of the respiratory frequency and presence or absence of rapid eye movements. The analysis provides a list of the sleep phases, minute by minute, and a traditional sleep diagram; we also calculate the successive appearances of the different sleep phases, in 10 min periods, and schematize these results in a diagram which shows the general trend of each sleep phase during the night. When compared with visual analysis, these results are satisfactory, since we observe on average 86.2% agreement in the differentiation of calm, paradoxical and transitional sleep, and 76.4% agreement in the differentiation of stages II, III and IV of calm sleep.
mesh_terms: D004569:Electroencephalography; D001330:Electronic Data Processing; D005133:Eye Movements; D006801:Humans; D007223:Infant; D009132:Muscles / Q000502:physiology; D012119:Respiration; D012890:Sleep / Q000502:physiology*; D012894:Sleep Stages / Q000502:physiology
vernacular_title: Realisation d'un systeme automatique permettant de coder le sommeil des nourrissons (2 a 12 mois).