title: [Various factors affecting the onset of paroxysmal nocturnal interictal activities in primary generalized epilepsy in adults].
abstract: The relationships between the states of vigilance and the interictal EEG, paroxysmal activities (PA) were studied in 20 adults with generalized primary epilepsy. Each patient was submitted to 1-5 nocturnal polygraphic recordings. Sleep and waking modify the PA densities: 8 patients had a waking PA increase, 7 a sleep PA increase and 5 exhibited no differences of PA density between sleep and waking. Within these groups there was also an influence of slow wave sleep stages on PA densities. The function of auto-correlation of PA did not exhibit any periodicity even after correction of the effects of the states of vigilance. In patients monitored several nights the evolution of the PA densities during the successive sleep cycles throughout the night did not usually reveal a clear and stable pattern.
mesh_terms: D000293:Adolescent; D000328:Adult; D004569:Electroencephalography; D004827:Epilepsy / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D010507:Periodicity; D012894:Sleep Stages / Q000502:physiology
vernacular_title: Etude de quelques facteurs influencant la survenue des activités paroxystiques inter-critiques nocturnes dans les épilepsies généralisées primaires de l'adulte.