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Related Experiment Video

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Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction

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Published on: August 30, 2019

Structural brain changes following peripheral vestibulo-cochlear lesion may indicate multisensory compensation.

Christoph Helmchen¹, Jan C Klinkenstein, Alexandra Krüger

¹Neuroimage Nord & Department of Neurology, University Hospitals Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, Lübeck D-23538, Germany. christoph.helmchen@neuro.uni-luebeck.de

Journal of Neurology, Neurosurgery, and Psychiatry

|August 31, 2010

Summary

Brain structure changes in the vestibular cortex may explain recovery after inner ear damage. These structural brain changes reflect central mechanisms of vestibular compensation following unilateral vestibulo-cochlear lesions.

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Area of Science:

Neuroscience
Neuroimaging
Vestibular System Research

Background:

Variability in clinical recovery after peripheral vestibulo-cochlear lesions suggests central nervous system involvement.
Investigating central mechanisms is crucial for understanding vestibular compensation.

Purpose of the Study:

To investigate structural brain plasticity in humans following unilateral vestibulo-cochlear lesions.
To determine if morphological brain changes contribute to central vestibular compensation.

Main Methods:

Compared regional grey matter volume (GMV) using voxel-based morphometry in patients post-acoustic neuroma removal versus controls.
Assessed vestibular and auditory disability using neuro-otological tests and clinical scores.

Main Results:

Found increased GMV bilaterally in somatosensory and motion-sensitive areas (MT).
Correlated GMV increases in contralesional areas (superior temporal gyrus/insula, inferior parietal lobe, auditory cortex) with improved vestibular, functional, and auditory outcomes, respectively.

Conclusions:

Suggests structural cortical plasticity in multisensory vestibular areas after unilateral peripheral lesions.
Structural brain changes correlate with vestibular function, indicating a role in central compensation mechanisms.