TY - JOUR IS - 3 VL - 69 PB - Elsevier Y1 - 2008/// UR - http://www.sciencedirect.com/science/article/pii/S0167876008002808 JF - International Journal of Psychophysiology A1 - Ricciardi, Emiliano A1 - Pietrini, Pietro A1 - Furey, Maura L. TI - Cholinergic modulation on brain response to working memory as task difficulty increases in young and older subjects SP - 187 EP - 188 ID - eprints3097 SN - 0167-8760 N1 - Abstracts of the 14th World Congress of Psychophysiology - The Olympics of the Brain - of the International Organization of Psychophysiology (I.O.P) Associated with the United Nations AV - none ER -