title: The Acquisition of a Conditional Visual Discrimination Is Facilitated By 5,7-Dihydroxytryptamine-Induced Lesions of Forebrain Serotoninergic Projections in Rats: Ward B1, Everitt BJ1, Robbins TW2, Wilkinson LS2. 1 Dept Anatomy, 2Dept Experimental Psychology University of Cambridge, Cambridge, England.