Sensory tricks modulate corticocortical and corticomuscular connectivity in cervical dystonia.

ABSTRACT:

Objective

To examine interactions between cortical areas and between cortical areas and muscles during sensory tricks in cervical dystonia (CD).

Methods

Thirteen CD patients and thirteen age-matched healthy controls performed forewarned reaction time tasks, sensory tricks, and two tasks replicating aspects of the tricks (moving necks/arms). Control subjects mimicked sensory tricks. Corticocortical and corticomuscular coherence values were calculated from surface electrodes placed over motor, premotor, and sensory cortical areas and dystonic muscles.

Results

During initial preparation (after the warning stimulus), the only between-task difference was found in the γ-band corticocortical coherence (higher during tricks than during voluntary neck movements). With movement

SUBMITTER: Lee SW 

PROVIDER: S-EPMC8629937 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature