High trait anxiety and hyporeactivity to stress of the dorsomedial prefrontal cortex: a combined phMRI and Fos study in rats. - Raffael Kalisch; Nicolas Salomé; Stefan Platzer; Alexandra Wigger; Michael Czisch; Wolfgang H. Sommer; Nicolas Singewald; Markus Heilig; Achim Berthele; Florian Holsboer; Rainer Landgraf; Dorothee P. Auer (NeuroImage, 2004)