?url_ver=Z39.88-2004&rft_id=doi%3A10.1016%2Fj.neuropharm.2012.07.003&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Emiliano&rft.aulast=Ricciardi&rft.au=Ricciardi%2C+Emiliano&rft.atitle=Cholinergic+enhancement+reduces+functional+connectivity+and+BOLD+variability+in+visual+extrastriate+cortex+during+selective+attention&rft.title=Neuropharmacology&rft.date=January+2013&rft.volume=64&rft.pages=305+-+313&rft.issn=0028-3908&rft.genre=article