Cortical dynamics within and between parietal and motor cortex in essential tremor.

ABSTRACT:

Background

Evidence 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.

Objectives

Examine 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.

Method

The 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.

Results

Changes in power across feedback in the 4-12 Hz and 12-30 Hz bands were reduced within t

SUBMITTER: Roy A 

PROVIDER: S-EPMC8355946 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature