Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Aug 17;13:718784. doi: 10.3389/fnagi.2021.718784

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2021 Rowland, Jenkinson and Chiou.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Motor evoked potentials (MEPs) and the onset of electromyography (EMG). (A) The size of ES MEPs correlates with EMG onset of the erector spinae (ES) muscle in older participants. However, (B) the same correlation is not present in young participants. The abscissa shows the size of ES MEP at 40 ms prior to the actual recognition reaction time (RRT). ES MEPs are calculated as a % of the ES MEP obtained at baseline when participants were not expecting to react to a visual cue. The ordinate shows the EMG onset of the ES muscle with respect to the visual cue. Note that the size of ES MEPs is smaller in old participants showing greater delayed anticipatory postural adjustments (APAs).