par Farthouat, Juliane ;Peigneux, Philippe
Editeur scientifique Tatsuno, Masami
Référence Analysis and Modeling of Coordinated Multi-neuronal Activity, Springer, New York, Vol. 12, Ed. 1, page (225-243)
Publication Publié, 2014
Partie d'ouvrage collectif
Résumé : Consistent evidence indicates that sleep participates in memory consolidation processes, possibly through the replay of learning-related neuronal activity. Besides animal data, non-invasive brain imaging studies in man (mostly using positron emission tomography [PET] and functional magnetic resonance imaging [fMRI]) have shown the spontaneous reactivation of cerebral activity in learning-related areas during sleep. Additionally, studies triggering reactivation using contextual cues during sleep have suggested a causal role for neuronal replay and reactivation in memory consolidation processes. Finally, several imaging studies support the hypothesis that post-learning sleep promotes a progressive transfer of information from hippocampus toward neocortical stores over time, as a possible consequence of the neuronal replay. Besides neuroimaging techniques, we argue that replay of neuronal activity may also be investigated and accessed at the behavioural level through the study of dreams and sleep disorders .