EEG lecture on recommended activities for the induction of attention and concentration mental states on e-learning students. - Julia Y. Arana-Llanes; Gabriel González Serna; Rodrigo Pineda-Tapia; Víctor Olivares-Peregrino; Jorge J. Ricarte-Trives; José M. Latorre-Postigo (J. Intell. Fuzzy Syst., 2018)