Modulation of ipsilateral motor evoked potentials during bimanual coordination tasks.

ABSTRACT:

Introduction

Ipsilateral motor evoked potentials (iMEPs) are difficult to obtain in distal upper limb muscles of healthy participants but give a direct insight into the role of ipsilateral motor control.

Methods

We tested a new high-intensity double pulse transcranial magnetic stimulation (TMS) protocol to elicit iMEPs in wrist extensor and flexor muscles during four different bimanual movements (cooperative-asymmetric, cooperative-symmetric, non-cooperative-asymmetric and non-cooperative-symmetric) in 16 participants.

Results

Nine participants showed an iMEP in the wrist extensor in at least 20% of the trials in each of the conditions and were classified as iMEP⁺ participants. iMEP persistence was greater for cooperative (50.5 ± 28.8%) compared to non-coop

SUBMITTER: Altermatt M 

PROVIDER: S-EPMC10509758 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature