Reduced left uncinate fasciculus fractional anisotropy in deficit schizophrenia but not in non deficit schizophrenia.

Year
2012
Type(s)
Author(s)
KİTİŞ ÖMER,ÖZALAY ÖZGÜN,ZENGİN BURÇAK E,HAZNEDAROĞLU DAMLA,EKER MEHMET ÇAĞDAŞ,YALVAÇ DİLEK,OĞUZ KAYA,COBURN KERRY,GÖNÜL ALİ SAFFET
Source
Psychiatry and Clinical Neurosciences, 66(1), 34-43.
Url
https://doi.org/10.1111/j.1440-1819.2011.02293.x

AIMS:

Schizophrenia is a psychiatric disorder manifesting with heterogeneous symptom clusters and clinical presentations. The deficitsyndrome is the condition defined by the existence of primarily negative symptoms, and patients with the deficit syndrome differ from nondeficit patients on measures of brain structure and function. In the current study, by using diffusion tensor imaging (DTI), we investigated the frontotemporal connectivity that is hypothesized to differ between deficit and nondeficit schizophrenia.

METHODS:

Twenty-nine patients and 17 healthy controls were included in the study. The patients had deficit (n = 11) or nondeficit (n = 18) schizophrenia and they were evaluated clinically with the Schedule for Deficit Syndrome (SDS) and Positive and Negative Syndrome Scale (PANSS). Diffusion-based images were obtained with a 1.5T Siemens Magnetic Resonance Imaging machine and analyses were carried out with Functional Magnetic Resonance Imaging of the Brain Library Software – Diffusion tool box software.

RESULTS:

The fractional anisotropy values in the left uncinate fasciculus of schizophrenia patients with the deficit syndrome were lower than those of nondeficit patients and the controls. There were no differences between nondeficit schizophrenia patients and controls.

CONCLUSION:

These findings provide evidence of left uncinate fasciculus damage resulting in disrupted communication between orbitofrontal prefrontal areas and temporal areas in deficit schizophrenia patients.

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