Are the slow waves which are characteristic of slow deep sleep simply, as has been thought up to this point, overseeing a period of “rest” for our brain as it “recuperates” after the intense activity of wakefulness? A study undertaken by researchers at the University and the Liège CHU, published in the American journal Proceedings of the National Academy of Sciences (PNAS), show that they orchestrate a ballet of cerebral activity comprised of “ups” and “downs”.
(1)a T.T. Dang-Vu, M. Schabus, M. Desseilles, G. Albouy, M. Boly, A.
Darsaud, S. Gais, G. Rauchs, V. Sterpenich, G. Vandewalle, J. Carrier,
G. Moonen, E. Balteau, C. Degueldre, A. Luxen, C. Phillips and P.
Maquet, Spontaneous Neural Activity during Human Slow Wave Sleep, PNAS,
30 sept. 2008, vol. 105, n° 39, 15160-15165.