Abstract：
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, measured at sub-voxel 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 treatment showed significant cortical thinning within cingulate, occipital and frontopolar cortices with no significant increases in any cortical location. Regional sex differences were observed with pronounced thinning 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 heteromodal association cortices, where cortical thinning has been previously observed in first episode schizophrenia.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Narr KL,Toga AW,Szeszko P,Thompson PM,Woods RP,Robinson D,Sevy S,Wang Y,Schrock K,Bilder RMdoi
10.1016/j.biopsych.2005.03.043subject
Has Abstractpub_date
2005-07-01 00:00:00pages
32-40issue
1eissn
0006-3223issn
1873-2402pii
S0006-3223(05)00429-4journal_volume
58pub_type
杂志文章abstract：BACKGROUND:The search for susceptibility genes in autism and autism spectrum disorders (ASD) has been hindered by the possible small effects of individual genes and by genetic (locus) heterogeneity. To overcome these obstacles, one method is to use autism-related subphenotypes instead of the categorical diagnosis of au...
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(00)01086-6
更新日期：2001-03-01 00:00:00
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