Corrigendum: Effects of Second Language Learning on the Plastic Aging Brain: Functional Connectivity, Cognitive Decline, and Reorganization - Bubbico, Giovanna; Chiacchiaretta, Piero; Parenti, Matteo; di Marco, Marcin; Panara, Valentina; Sepede, Gianna; Ferretti, Antonio; Perrucci, Mauro Gianni (Frontiers in Neuroscience, 2020)