Brain Connectivity in Dystonia: Evidence from Magnetoencephalography

Shah-Zamora, Deepal; Bowyer, Susan M.; Zillgitt, Andrew; Sidiropoulos, Christos; Mahajan, Abhimanyu

doi:10.1007/978-3-031-26220-3_8

Advances in Neurobiology

2023

DOI: 10.1007/978-3-031-26220-3_8

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Brain Connectivity in Dystonia: Evidence from Magnetoencephalography

Deepal Shah-Zamora

Susan M. Bowyer

Andrew Zillgitt

et al.

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2024

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Understanding Anxiety in Cervical Dystonia: An Imaging Study

Mahajan,

Stoub,

Gonzalez

et al. 2024

Movement Disord Clin Pract

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BackgroundAnxiety may precede motor symptoms in cervical dystonia (CD) and is associated with an earlier onset of dystonia. Our understanding of anxiety in CD is inadequate.ObjectiveTo investigate brain networks associated with anxiety in CD.MethodsTwenty‐six subjects with idiopathic CD underwent MRI Brain without contrast. Correlational tractography was derived using Diffusion MRI connectometry. Quantitative Anisotropy (QA) was used in deterministic diffusion fiber tracking. Correlational tractography was then used to correlate QA with State–Trait Anxiety Inventory (STAI) state (STAI‐S) and trait (STAI‐T) subscales.ResultsConnectometry analysis showed direct correlation between state anxiety and QA in tracts from amygdala to thalamus/ pulvinar bilaterally, and trait anxiety and QA in tracts from amygdala to motor cortex, sensorimotor cortex and parietal association area bilaterally (FDR ≤0.05).ConclusionOur efforts to map anxiety to brain networks in CD highlight the role of the amygdala in the pathophysiology of anxiety in CD.

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Understanding Anxiety in Cervical Dystonia: An Imaging Study

Mahajan,

Stoub,

Gonzalez

et al. 2024

Movement Disord Clin Pract

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Brain Connectivity in Dystonia: Evidence from Magnetoencephalography

Cited by 1 publication

References 37 publications

Understanding Anxiety in Cervical Dystonia: An Imaging Study

Understanding Anxiety in Cervical Dystonia: An Imaging Study

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