Cortical thinning in cingulate and occipital cortices in first episode schizophrenia

被引:176
作者
Narr, KL
Toga, AW
Szeszko, P
Thompson, PM
Woods, RP
Robinson, D
Sevy, S
Wang, YP
Schrock, K
Bilder, RM
机构
[1] Univ Calif Los Angeles, Sch Med, Dept Neurol, Div Brain Mapping,Lab Neuro Imaging, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, Sch Med, Dept Neurol, Ahmanson Lovelance Brain Mapping Ctr, Los Angeles, CA 90095 USA
[3] Zucker Hillside Hosp, N Shore Long Isl Jewish Hlth Syst, Dept Psychiat Res, Glen Oaks, NY USA
关键词
brain structure; anatomy; imaging; MRI; cingulate; limbic;
D O I
10.1016/j.biopsych.2005.03.043
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Background: Postmortem studies examining discrete regions show reduced cortical thickness in schizophrenia. Computational image analysis methods allow spatially detailed cortical thickness measurements across the entire cortex in 3D, but have not addressed thickness changes in cingulate or other cortices bordering the medial walls of the cerebral hemispheres in first episode schizophrenia. Methods: Magnetic resonance images and cortical pattern matching methods were used to compare gray matter thickness, measureed at sub-voxal resolution at thousands of spatially equivalent locations on the medial hemispheric surfaces, between 72(51m/21f) first episode schizophrenia patients and 78(37m/41f) healthy controls similar in age. Group differences were mapped in 3D, and their overall significance was confirmed by permutation testing. Results: Patients with little or no prior antipsychotic medication treatments showed significant coritical thinning within cingulate, occipital and frontopolar cortices with no significant increased in any cortical location. Regional sex differences were observed with pronounced thinnig in the left paracentral lobule and right posterior cingulate in male and female patients respectively compared to same sex controls. Conclusions: Cortical thinning may correspond to cytoarchitectural and neurochemical abnormalities observed in similar anatomic locations and may underlie systems-wise disturbances that include hetermodal association cortices, where cotrical thinning has been perviously observed in first episode schizophrenia.
引用
收藏
页码:32 / 40
页数:9
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