ArticleMovement disorders : official journal of the Movement Disorder Society2019
Cortical dynamics within and between parietal and motor cortex in essential tremor.
Article in Movement disorders : official journal of the Movement Disorder Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 29 citations in OpenAlex.
- Transcranial static magnetic field stimulation of the primary motor cortex in essential tremor: a randomized pilot study.NPJ Parkinson's disease · 2025Article
- Cortico-thalamic tremor circuits and their associations with deep brain stimulation effects in essential tremor.Brain : a journal of neurology · 2025Article
- Essential tremor disrupts rhythmic brain networks during naturalistic movement.Neurobiology of disease · 2025Article
- Ventrointermediate thalamic stimulation improves motor learning in humans.Communications biology · 2024Article
- Mapping Essential Tremor to a Common Brain Network Using Functional Connectivity Analysis.Neurology · 2023Review
- Multimodal imaging of essential tremor and dystonic tremor.NeuroImage. Clinical · 2022Article
- Quantitative Separation of Tremor and Ataxia in Essential Tremor.Annals of neurology · 2020Article
- Cortical Oscillations in Cervical Dystonia and Dystonic Tremor.Cerebral cortex communications · 2020Article
- Disappearance of long-term right-sided essential tremor after stroke in the left corona radiata.Neurology. Clinical practice · 2019Article
- Neuropathology and pathogenesis of extrapyramidal movement disorders: a critical update. II. Hyperkinetic disorders.Journal of neural transmission (Vienna, Austria : 1996) · 2019Review
- Network-level connectivity is a critical feature distinguishing dystonic tremor and essential tremor.Brain : a journal of neurology · 2019Article
- Altered neural oscillations within and between sensorimotor cortex and parietal cortex in chronic jaw pain.NeuroImage. Clinical · 2019Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundEvidence from functional imaging in essential tremor suggests that activity within parietal and motor cortices may be associated with worsening of tremor at increased visual feedback.
objectivesExamine how cortical oscillations within these regions and the connectivity between these regions is associated with worsening of tremor in essential tremor in response to high visual feedback.
methodThe study included 24 essential tremor participants and 17 controls. We measured cortical activity and tremor magnitude at low and high feedback conditions. Cortical activity was measured using high-density electroencephalogram and isolated using source localization.
resultsChanges in power across feedback in the 4-12 Hz and 12-30 Hz bands were reduced within the contralateral motor cortex of essential tremor patients compared to controls. The 12-30 Hz bidirectional connectivity between the parietal and contralateral motor cortex was decreased in essential tremor patients. Worsening of tremor from low to high visual feedback was associated with 4-12 Hz activity in contralateral motor cortex. The greatest separation between groups was found when using the difference of the contralateral motor cortex activity at high and low feedback, rather than either feedback condition alone.
conclusionOur findings provide new evidence that tremor in essential tremor is associated with reduced power across feedback in the motor cortex and reduced connectivity between the parietal and motor cortices. Combined with previous work on the cerebellar-thalamo-cortical motor circuit, our findings suggest that the network level disturbances associated with essential tremor extend to the cortico-cortical pathway between the parietal cortex and motor cortex. © 2018 International Parkinson and Movement Disorder Society.
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