title: Straight gyrus morphology in first-episode schizophrenia-spectrum patients.
abstract: Previous studies on the straight gyrus have shown inconsistent results in first-episode schizophrenia. In the present study, straight gyrus morphometry in first-episode schizophrenia-spectrum patients was investigated by using a region-of-interest methodology. 141 schizophrenia-spectrum patients and 81 healthy subjects were studied. Magnetic resonance imaging brain scans (1.5 T) were obtained and images were analyzed by using BRAINS2. The main resulting measurements were straight gyrus gray matter volume and cortical surface area. Patients with schizophrenia-spectrum disorders did not significantly differ from controls in the straight gyrus morphometric variables evaluated (p>0.115). There was neither significant group-by-side (p>0.199) or group-by-gender interaction (p>0.096). Clinical variables were not significantly related with straight gyrus morphology. Our results, based on a large and representative sample, do not confirm the presence of significant straight gyrus morphometric anomalies in schizophrenia-spectrum disorders, after controlling for potential confounding variables.
authors.affiliation: Department of Psychiatry, School of Medicine, University of Cantabria, University Hospital Marqués de Valdecilla, IFIMAV, Santander, Spain. rroiz@humv.es
authors.forename: Roberto
authors.initials: R
authors.lastname: Roiz-Santiáñez
authors.forename: Rocío
authors.initials: R
authors.lastname: Pérez-Iglesias
authors.forename: Victor
authors.initials: V
authors.lastname: Ortiz-García de la Foz
authors.forename: Diana
authors.initials: D
authors.lastname: Tordesillas-Gutiérrez
authors.forename: Ignacio
authors.initials: I
authors.lastname: Mata
authors.forename: Enrique
authors.initials: E
authors.lastname: Marco de Lucas
authors.forename: Angel
authors.initials: A
authors.lastname: Pazos
authors.forename: Rafael
authors.initials: R
authors.lastname: Tabarés-Seisdedos
authors.forename: José Luis
authors.initials: JL
authors.lastname: Vázquez-Barquero
authors.forename: Benedicto
authors.initials: B
authors.lastname: Crespo-Facorro
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000473:pathology*; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D012559:Schizophrenia / Q000473:pathology*; D012565:Schizophrenic Psychology; D055815:Young Adult