L’association « Narcolepsie Vlaanderen » s’intéresse aux études réalisées par le groupe Sommeil&Chronobiologie du GIGA-CRC in Vivo Imaging. Vincenzo donne une présentation. Le résumé (en Anglais) se trouve ci-bas.
Title: Brain rhythms: from daily to seasonal changes in human cognition.
Speaker: Vincenzo Muto, PhD
Summary: Most living organisms, from cyanobacteria to mammals, exhibit rhythmic changes in physiological and behavioral variables concomitant with the daily light-dark cycle. In humans, the overall rhythmicity observed in physiology and behavior is driven by an internal clock, a small region in the anterior hypothalamus of our brain. This endogenous clock spontaneously synchronizes with the environmental light–dark cycle, allowing the organism to anticipate and adapt to the environmental changes. Unfortunately in the modern society, people are often forced to be awake at inappropriate or at biologically non-optimal times, increasing sleepiness and the consequent risk of accidents, errors and health problems. The effects of sleep deprivation on human cognition are well known and the time course of neurobehavioral performance during extended wakefulness has been accurately described. However little is known about the time course of the neural correlates of cognitive functioning under sleep deprived conditions. During the talk it was summarized how repeated functional magnetic resonance imaging can assess rhythmicity in cognitive brain responses, ranging from daily to seasonal variations.
Pour plus d’informations sur l’association: http://www.narcolepsievlaanderen.be/