Lateral frontal cortex volume reduction in Tourette syndrome revealed by VBM.

BMC Neuroscience
Matthias WittfothKirsten R Müller-Vahl

Abstract

Structural changes have been found predominantly in the frontal cortex and in the striatum in children and adolescents with Gilles de la Tourette syndrome (GTS). The influence of comorbid symptomatology is unclear. Here we sought to address the question of gray matter abnormalities in GTS patients with co-morbid obsessive-compulsive disorder (OCD) and/or attention deficit hyperactivity disorder (ADHD) using voxel-based morphometry (VBM) in twenty-nine adult actually unmedicated GTS patients and twenty-five healthy control subjects. In GTS we detected a cluster of decreased gray matter volume in the left inferior frontal gyrus (IFG), but no regions demonstrating volume increases. By comparing subgroups of GTS with comorbid ADHD to the subgroup with comorbid OCD, we found a left-sided amygdalar volume increase. From our results it is suggested that the left IFG may constitute a common underlying structural correlate of GTS with co-morbid OCD/ADHD. A volume reduction in this brain region that has been previously identified as a key region in OCD and was associated with the active inhibition of attentional processes may reflect the failure to control behavior. Amygdala volume increase is discussed on the background of a linkage of ...Continue Reading

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Citations

Apr 12, 2013·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Bor-Tsang WuFuu-Jen Tsai
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Feb 18, 2020·Journal of Psychiatric Research·Tracy BhikramPaul Sandor

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Software Mentioned

SPM8
MATLAB
VBM8
DARTEL
VBM
DARTEL ( Diffeomorphic Anatomical Registration Through Exponen...
REX

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