Ontogenetic development of ponto-geniculo-occipital waves during paradoxical sleep in kittens.

Study Objectives: Ponto-geniculo-occipital (PGO) waves are a hallmark feature of paradoxical sleep (PS), emerging just before PS onset during the transition from slow wave sleep (SWS) to PS (TSWS-PS) and persisting throughout the PS phase in adult cats. These waves are considered a biomarker for the maturation of PS. However, their developmental trajectory in mammals remains poorly understood.