Fractal dimension of cerebral cortical surface in schizophrenia and obsessive-compulsive disorder

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Paper (help)
Fractal dimension of cerebral cortical surface in schizophrenia and obsessive-compulsive disorder
Authors: Tae Hyon Ha, Uicheul Yoon, Kyung Jin Lee, Yong Wook Shin, Jong-Min Lee, In Young Kim, Kyoo Seob Ha, Sun I. Kim, Jun Soo Kwon
Citation: Neuroscience letters 384 (1-2): 172-176. 2005 August
Database(s): PubMed (PMID/15893428)
DOI: 10.1016/j.neulet.2005.04.078.
Link(s): http://each.uspnet.usp.br/sistcomplexos/SC1/Fractal/brainfractalTOC.pdf
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Fractal dimension of cerebral cortical surface in schizophrenia and obsessive-compulsive disorder reports a structural neuroimaging study with patients either with schizophrenia or obsessive-compulsive disorder and magnetic resonance imaging.

The method for computing the fractal dimension is described in Analysis of the hemispheric asymmetry using fractal dimension of skeletonized cerebral surface and Evaluation of automated and semi-automated skull-stripping algorithms using similarity index and segmentation error.

[edit] Subjects

Subject group #1 (help)
Obsessive-compulsive disorder patients
Subjects/♂/♀: 50 / 34 / 16
Age: 26.7 ±7.0 (–)
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Group 1 of 50 obsessive-compulsive disorder patients with 34 males and 16 females were included in the study.

The group had a mean age of 26.7.
Subject group #2 (help)
Schizophrenia patients
Subjects/♂/♀: 45 / 26 / 19
Age: 27.0 ±5.4 (–)
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Group 2 of 45 schizophrenia patients with 26 males and 19 females were included in the study.

The group had a mean age of 27.0.
Subject group #3 (help)
Healthy controls
Subjects/♂/♀: 26 / 16 / 10
Age: 24.1 ±4.8 (–)
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Group 3 of 26 healthy controls with 16 males and 10 females were included in the study. The group had a mean age of 24.1.


[edit] Results

Fractal dimension is reported for whole brain, left hemisphere and right hemisphere, while tissue volume is reported for gray matter, white matter, CSF and intracranial volume.

[edit] Critique

  1. Internal inconsistency: The abstract states that there are 50 schizophenic patients, while the text states 45 (pages 173-174). The abstract has probably switched the number between the schizophenic and OCD patients.
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