نتایج جستجو برای: voxel based morphometry
تعداد نتایج: 2944555 فیلتر نتایج به سال:
BACKGROUND AND PURPOSE Alterations in the central autonomic network are hypothesized to play a role in the pathophysiologic mechanism underlying neurocardiogenic syncope; however, few data are available regarding the structural changes of the brain in this condition. We used voxel-based morphometry and regional volumetry to identify possible neuroanatomic correlates. MATERIALS AND METHODS We ...
CONTEXT Researchers have documented that the hippocampus is smaller in individuals with depression than in those without. The temporal or causal association of this reduction in hippocampal volume in depression, however, is not known. OBJECTIVE To test the hypothesis that reduced hippocampal volume precedes and therefore may be implicated in the onset of depression. DESIGN We used magnetic ...
CONTEXT There is evidence of linkage to a schizophrenia susceptibility locus on chromosome 8p21-22 found by several family linkage studies. OBJECTIVES To fine map and identify a susceptibility gene for schizophrenia on chromosome 8p22 and to investigate the effect of this genetic susceptibility on an endophenotype of abnormal brain structure using magnetic resonance imaging. DESIGN Fine map...
Voxel-based morphometry has been used in the study of alterations in brain structure in type 1 diabetes mellitus patients. These changes are associated with clinical indices. The age at onset, pathogenesis, and treatment of type 1 diabetes mellitus are different from those for type 2 diabetes mellitus. Thus, type 1 and type 2 diabetes mellitus may have different impacts on brain structure. Only...
BACKGROUND Several imaging studies have identified localized anatomical and functional brain changes in medication-overuse headache (MOH). OBJECTIVE The objective of this article is to evaluate whole-brain functional connectivity at rest together with voxel-based morphometry in MOH patients, in comparison with episodic migraine (EM) patients and healthy controls (HCs). METHODS Anatomical MR...
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