@inproceedings{eprints3318, booktitle = {Neuroimage}, publisher = {Elsevier}, note = {Proceedings of the 9th Annual Meeting of the Human Brain Mapping Organization}, title = {Cholinergic Enhancement during Working Memory Eliminates Regional Cerebral Blood Flow (rCBF) Modulation Associated with Task Difficulty in Prefrontal Cortex}, author = {Maura L. Furey and Emiliano Ricciardi and Stanley I. Rapoport and Mark B. Schapiro and Pietro Pietrini}, year = {2003}, url = {http://eprints.imtlucca.it/3318/} }