“…The concept of reciprocal interactions between memory systems has been supported by a series of recent behavioral studies showing interference between declarative and procedural learning, suggesting that these memory systems share common neural networks (Brown and Robertson, 2007a,b;Cohen and Robertson, 2011;Keisler and Shadmehr, 2010; see Robertson, 2012 for a review). Furthermore, in the framework of procedural memory, neuroimaging investigations of functional activation and connectivity associated to motor sequence learning have revealed that both the corticostriato-cerebellar (e.g., Coynel et al, 2010;Debas et al, 2010Debas et al, , 2014Tzvi et al, 2014;see Doyon et al, 2009;Doyon and Benali, 2005;Doyon et al, 2003; for reviews) and hippocampo-cortical networks (Albouy et al, 2008(Albouy et al, , 2012(Albouy et al, , 2013c; see Albouy et al, 2013b for a review) are not only involved in the acquisition, but also in the consolidation of motor sequence memories. However, the respective roles of the striatum and the hippocampus in motor sequence learning and their respective link with subsequent sleep-related changes in performance, an indicator of memory consolidation, remain unclear.…”