Dynamics of cortical and corticomuscular connectivity during planning and execution of visually guided steps in humans.

ABSTRACT: The cortical mechanisms underlying the act of taking a step-including planning, execution, and modification-are not well understood. We hypothesized that oscillatory communication in a parieto-frontal and corticomuscular network is involved in the neural control of visually guided steps. We addressed this hypothesis using source reconstruction and lagged coherence analysis of electroencephalographic and electromyographic recordings during visually guided stepping and 2 control tasks that aimed to investigate processes involved in (i) preparing and taking a step and (ii) adjusting a step based on visual information. Steps were divided into planning, initiation, and execution phases. Taking a step was characterized by an upregulation of beta/gamma coherence within the parieto-frontal network

SUBMITTER: Spedden ME 

PROVIDER: S-EPMC7614067 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature