Daytime naps improve motor imagery learning
Cognitive Affective & Behavioral Neuroscience (2011) - Comment
pubmed: 21842279  doi: 10.3758/s13415-011-0052-z  issn: 1531-135x  issn: 1530-7026 

Ursula Debarnot, Eleonora Castellani, Gaetano Valenza, Laura Sebastiani, Aymeric Guillot