An fMRI study of "theory of mind" in at-risk states of psychosis: Comparison with manifest schizophrenia and healthy controls. - Martin Brüne; Seza Özgürdal; Nina Ansorge; Heinrich Graf von Reventlow; Sören Peters; Volkmar Nicolas; Martin Tegenthoff; Georg Juckel; Silke Lissek (NeuroImage, 2011)