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PHASES DU SOMMEILEndormissement:-sécrétion mélatonine (favorise endormissement, en + du fait que la lumière du jour baisse)-correspond à état de transition _____/_________Sommeil lent et très léger:-peut percevoir les bruits -__________de la fréquence des ondes -apparition d'ondes hautes fréquences= __________ de sommeil Sommeil lent léger:-+ de perception de ce qui se passe autour de nous -ondes lentes ______ de grandes amplitudes Sommeil profond:-_____% ondes lentes deltaSommeil paradoxal= présence de ________(enregistrement de ce que le cerveau a appris dans la journée)Latence:-dure qlq minutes -est suivi par l'_____ ou un nouveau _____

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