title: Anterior cingulum volumetry, auditory P300 in schizophrenia with negative symptoms.
abstract: The anterior cingulate cortex (ACC) is located at the rostum of the corpus callosum and involved in both cognitive and emotional brain processes. It has been suggested to be involved in P300 event-related potential generation. A large sample of schizophrenia inpatients and controls was examined in order to assess the potential relationship between ACC volumes and P300 characteristics in patients with more pronounced negative symptoms. In 50 male schizophrenia patients and 50 matched controls, auditory P300 and structural magnetic resonance imaging volume measurements of the ACC were obtained. Patients' negative symptoms were assessed using the PANSS (Positive and Negative Syndrome Scale). Volumetry of ACC subregions revealed a volume reduction in patients with schizophrenia compared with controls in right hemispheric rostral ACC subregions that were most pronounced in more negative schizophrenia patients. There was a positive correlation between PZ P300 amplitude and total ACC volume in the right hemisphere in schizophrenia patients with less negative symptoms. The results support the assumption that structural changes of the ACC are more pronounced in subgroups of schizophrenia patients with more negative psychopathology. In addition, while right hemisphere ACC volumes significantly differ between schizophrenia subgroups, combining measures of event-related potential (ERP) and ACC volumetry does not add additional information.
authors.affiliation: Department of Psychiatry and Psychotherapy, Ludwig-Maximilians University, Nussbaumstrasse 7, D-80336 Munich, Germany. ulrich.preuss@medizin.uni-halle.de
authors.forename: Ulrich W
authors.initials: UW
authors.lastname: Preuss
authors.forename: Thomas
authors.initials: T
authors.lastname: Zetzsche
authors.forename: Oliver
authors.initials: O
authors.lastname: Pogarell
authors.forename: Christoph
authors.initials: C
authors.lastname: Mulert
authors.forename: Thomas
authors.initials: T
authors.lastname: Frodl
authors.forename: Dirk
authors.initials: D
authors.lastname: Müller
authors.forename: Gisela
authors.initials: G
authors.lastname: Schmidt
authors.forename: Christine
authors.initials: C
authors.lastname: Born
authors.forename: Maximilian
authors.initials: M
authors.lastname: Reiser
authors.forename: Hans-Jürgen
authors.initials: HJ
authors.lastname: Möller
authors.forename: Ulrich
authors.initials: U
authors.lastname: Hegerl
authors.forename: Eva M
authors.initials: EM
authors.lastname: Meisenzahl
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods; D000704:Analysis of Variance; D001931:Brain Mapping; D004569:Electroencephalography / Q000379:methods; D018913:Event-Related Potentials, P300 / Q000502:physiology*; D007839:Functional Laterality; D006179:Gyrus Cinguli / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D011569:Psychiatric Status Rating Scales; D011930:Reaction Time / Q000502:physiology; D012559:Schizophrenia / Q000473:pathology / Q000503:physiopathology*; D012565:Schizophrenic Psychology; D013223:Statistics as Topic