TY - JOUR SP - 187 PB - Elsevier SN - 0167-8760 A1 - Ricciardi, Emiliano A1 - Pietrini, Pietro A1 - Furey, Maura L. IS - 3 JF - International Journal of Psychophysiology UR - http://www.sciencedirect.com/science/article/pii/S0167876008002808 Y1 - 2008/// TI - Cholinergic modulation on brain response to working memory as task difficulty increases in young and older subjects AV - none VL - 69 EP - 188 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 ID - eprints3097 ER -